Answer:
a: 7
b:80
c: x-1^2-9=y
with the tax it would be :50.03
And the percentage would be :60%
Step-by-step explanation:
8/24 = 21/63 = 1/3
yes it's a proportion
23
8x-77=3x+38 > 8x=3x+115 > 5x=115 > x=23