Question

Suppose chocolate is on sale for $0.40 a bar and you have a coupon for $0.20 off your total

purchase. Write a function rule for the cost of n chocolate bar. How much would 20 chocolate bars
cost?

Answer 1

$7.80

Explanation:

.40C-.20=T

C=# of chocolate bars

.20 is the coupon

C=20

.40*20-.20=Total

8-.20=Total

$7.80