Answer:
$5.25
Step-by-step explanation:
30% is equal to 0.3
$7.5*(1-0.3)=$5.25
y = total cost
x = # of hours
$12 + $8x = y
5a. 5m+2
5b. $140
6a. 5m
6b. $26.25
7a. 40m+35
7b. $750
8. 27
9. 8
b
I pretty sure it b can u plz mark as brlainlest sorry if wrong try b