Answer:
0.50(20) + 0.75(6)=y
Step-by-step explanation:
0.50S + 0.75B=y
0.50(20) + 0.75(6) = total
discount = 9
new price = 36
The discount is the price times the discount percent
45 * 20%
Change to decimal form
45*.20
9
The new price is the original price minus the discount
45-9 = 36
4.8