The stage for a school play is 70 feet wide. A set for the play will be built in two sections, separated by 5 feet in the center. In addition, 3 feet must be left free on the left and on the right as space for the actors to stand offstage.
What should be the width of each section of the set?
A. 20 feet
B. 25 1/2 feet
C. 29 1/2 feet
D. 59 feet

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative