Write this sentence as an equation. What is m?
The sum of 11 and m is 15

11+m = 15

m = 4

Step-by-step explanation:

Sum means add and is means equals

11+m = 15

Subtract 11 from each side

11+m-11 =15-11

m = 4

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,

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64