1. find the average rate of change on the interval [2,5] for each of the functions below.
a. a(x) = 2x + 1
b. b(x) = x^2 +2
c. c(x)=2^x- 1

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

What is the domain of the step function f(x)=[2x]-1?