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?

Respuesta :

Answer:

$7.80

Step-by-step explanation:

.40C-.20=T

C=# of chocolate bars

.20 is the coupon

C=20

.40*20-.20=Total

8-.20=Total

$7.80

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