What is the range for this set of data?
7, 15, 12

a. 3
b. 5
c. 8
d. 12

What is the y intercept of f(x)=(1/2)^x?

Analyze the graph of the cube root function shown on the right to determine the transformations of the parent function. then, determine the values of a, h, and k in the general equation.

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?