Line ℓ is defined by 5y + 10x = 3. Line n is perpendicular to line ℓ in the xy-plane. What is the slope of line n?

The data in the table above were produced by a sleep researcher studying the number of dreams people recall when asked to record their dreams for one week. GroupX consisted of 100 people who observed early bedtimes, and GroupY consisted of 100 people who observed later bed times. If a person is chosen at random from those who recalled at least 1 dream, what is the probability that the person belonged to GroupY ?

A sign on a freeway says 1 mile to the 15th Street exit and 4 miles to the Downtown exit. At a different location on the same road in the opposite direction, another sign says 2 miles to Downtown exit. How far is the sign from the 15th Street exit?

The scatterplot shows the relationship between two variables, x and y. A line of best fit is also shown. Which of the following equations best represents the line of best fit shown?

What is the perimeter, in inches, of a rectangle with a length of 5 inches and a width of 12 inches?

The function f is defined by f(x) = x² + x + 100. What is the value of f(5)?

A model estimates that at the end of each year from 2015 to 2020, the number of squirrels in a population was 150% more than the number of squirrels in the population at the end of the previous year. The model estimates that at the end of 2016, there were 180 squirrels in the population. Which of the following equations represents this model, where 𝑛 is the estimated number of squirrels in the population 𝑡 years after the end of 2015 and 𝑡 ≤ 5?

The graph of a system of linear equations is shown. What is the solution (x, y) to the system?

A baseball team won 20% of its games in the first half of the season. To achieve 50% winning average or better in the season, at least what percent of its remaining games must it win?

A pizza restaurant wants to make a pizza that is 10% bigger than the current 8 inch pizza. What is the diameter of the new pizza?

Which of the following graphs best shows a strong negative association between d and t ?

The equation below expresses the approximate height h, in meters, of a ball t seconds after it is launched vertically upward from the ground with an initial velocity of 25 meters per second. After approximately how many seconds will the ball hit the ground?

In the isosceles right triangle below, what is the length of a leg, x?

If (ax + 2) (bx + 7) = 15x² + cx + 14  for all values of x, and a + b = 8, what are the two possible values for c ?

If a / b = 2, what is the value of 4b/a ?

A football team has won 10 games and lost 5. If the team wins the remaining games, they will have won 75% of all the games. How many more games will they play?

A closing factory sold two used machines for $1200 each. One machine brings 20% profit; the other 20% loss. How much is the total profit or loss?

The total cost, in dollars, to rent a surfboard consists of a $35 service fee and a $20 per hour rental fee. A person rents a surfboard for t hours and intends to spend a maximum of $100 to rent the surfboard. Which inequality represents this situation?

The result of increasing the quantity x by 1,900% is 725. What is the value of x?

The table below lists the lengths, to the nearest inch, of a random sample of 21 brown bullhead fish. The outlier measurement of 24 inches is an error. Of the mean, median, and range of the values listed, which will change the most if the 24-inch measurement is removed from the data?

A food truck sells salads for $6.50 each and drinks for $2.00 each. The food truck’s revenue from selling a total of 209 salads and drinks in one day was $836.50. How many salads were sold that day?