What is the circumference of the given circle? use 3.14 for the value of π and round your answer to the nearest tenth.

a) 46.5 mi
b) 47.8 mi
c) 48.4 mi
d) 50.3 mi

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.