Suppose tuna is on sale for $0.90 a can, and you have a coupon for $0.40 off your total purchase. write a function rule for the cost of n cans of tuna.

a. c(n)=0.90n-0.40

b. c(n)=0.40n-0.90

c. c(n)=(0.90+n)-0.40

d. c(n)=(0.40+n)-0.90

Hence, Option 'A' is correct.

Step-by-step explanation:

since we have given that

Cost of per cans = $0.90

Let number of cans of Tuna be n

so, Total cost of n cans be

Amount of coupon Tuna get off on total purchase = $0.40

So, According to question,

Hence, Option 'A' is correct.

16.80 times .20= 3.36

step-by-step explanation: