What is the average rate of change of fff over the interval -1\leq x\leq 1−1≤x≤1minus, 1, is less than or equal to, x, is less than or equal to, 1?

Could someone with number 1 and 2

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box

Susie wants to take her friend out for lunch. she wants to spend $9.75 each person. how much will she spend in all.