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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

Respuesta :

Answer: 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.




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