Answer:
160 students
Step-by-step explanation:
Sale tax rate = 7.5%
The book cost $12.95
If you take 12.95 x 0.075 = 0.97125
Round the answerto the hundredth (0.97)
Add the tax, 12.95 + 0.97 = 13.92
x=(3u)/(10y)
