The rate of change is the slope. You're finding the average between two points, so find the slope between them using the slope formula. It's 20.
Step-by-step explanation:

m is the slope.
plug in the numbers, and you get

Answer:
let : A = - 2xy
put : x = - 1 and y = 6
you have : A = - 2 (-1)(6)
A = 12
Answer:Side C H
Step-by-step explanation:
Answer: 42.7%
Step-by-step explanation:
A = p (1+r/n)^nt
1500 = 1000 (1 + r/4)^4x1
r = 42.673