A family will travel 350 miles from their house in order to reach Dallas, TX. Which inequality can be used to find all possible values of t, the time it will take this family to reach Dallas in hours, if they travel at an average speed of at least r miles per hour?

A print shop charges a fixed amount per photocopy and gives a 10% discount off the total cost of the photocopies. The total cost is a function of the number of photocopies made. What is the independent quantity in this situation?

A teacher will determine the total number of books to order for a class using the function b(n) = 4n, where n represents the number of students in the class. What is the independent quantity in this situation?

One type of redwood tree has an average height of 65 feet when it is 20 years old. If the tree is more than 20 years old, the average height, h, can be modeled by the function h = 1.95(a − 20) + 65, where a is the age of the tree in years. Which statement about this situation is true?

Which graph represents the inequality −2x + 3y > 12?

The number of possible pairings of 2 objects selected from a set of x objects can be modeled by p(x) = 0.5x(x − 1). Which table shows this quadratic relationship?

In three different workouts a runner burned 300 calories in 30 minutes, 350 calories in 35 minutes, and 200 calories in 20 minutes. Based on the data, which statement is true if the number of calories burned is a function of the number of minutes the runner worked out?

The average blue whale gains weight at a constant rate each day during its first six months of life. The relationship between the average blue whale’s weight in tons, w, and its age in days, d, for the first six months of its life can be modeled by the function w = 0.1d + 3. Based on this relationship, which statement is not true for the average blue whale?

Which representation does not show y as a function of x?

Which graph represents the inequality −2x + 7y ≤ 112?