Ray is purchasing a laptop that is on sale for 25% off. He knows the function that represents the sale price of his laptop is c (p) = 0.75p, where p is the original price of the laptop. He also knows he has to pay 8% sale's tax on the laptop. The price of the laptop with tax is f (c) = 1.08c, where c is the sale price of the laptop.

Determine the composite function that can be used to calculate the final price of Ray's laptop by solving for f[c (p) ].

f[c (p) ] = 1.83p

f[c (p) ] = 1.83cp

f[c (p) ] = 0.81p

f[c (p) ] = 0.81cp

Question

7 May, 02:23

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Answers (1)

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Frank Sampson · Answer 1

Given:

c (p) = 0.75p

f (c) = 1.08c

f[c (p) ] = 1.08*0.75p

f[c (p) ] = 0.81p The 3rd option is my answer.