Answer:
A.
B. cupcakes
Step-by-step explanation:
Part A:
The simplified form of the expression is
Part B:
Put in the above simplified equation to get the number of cupcakes Mrs. Jones bake last week
cupcakes
-1/1
down one, over one
5(x+8)-1=20+2(x+8)
or, 5x + 40 -1 = 20 + 2x + 16
or, 5x-2x = 20+ 16 -39
3x = -3
x = -1