Michelle will earn $15 from the interest rate.
Answer:

Step-by-step explanation:
All of the sides are the same length.



Answer:
x = 0
y = -12
Step-by-step explanation:
Plug in what y is equal to into the second equation
-3(x - 12) = 2x + 36
Distribute the -3
-3x + 36 = 2x + 36
-36 -36
-3x = 2x
They cannot be equal so x = 0
Plug in 0 into the y equation
y = 0 - 12
y = -12
Rise
___
run
y2-y1
____
x2-x1
-1-4
___
2--2
-5
___
4
rise: -5
run: 4