Question

Kim ordered a pizza. He has a $1.00 coupon which will get applied after a weekday discount of 15%. Let the original cost of the pizza, the cost with the coupon discount applied, and the cost with the weekday discount applied.

Which expression gives the cost for Kim’s pizza?

c of x plus d of x

d as a function of c of x

c as a function of d of x

c of x times d of x

Answer 1

Correct question is;

Kim ordered a pizza. He has a $1.00 coupon which will get applied after a weekday discount of 15%. Let the X be the original cost of the pizza, C(x) = the cost with the coupon discount applied, and D(x) = the cost with the weekday discount applied.

Which expression gives the cost for Kim’s pizza?

A) C(x) + D(x)

B) D(C(x))

C) C(D(x))

D) C(x) × D(x)

Answer:

Option C: C(D(x))

Explanation:

We are given that;

C(x) = the cost with the coupon discount applied

D(x) = the cost with the weekday discount applied.

Since there is a weekday discount, it means the cost for Kim's pizza will be a function of the discount.

This means that the cost will be C as a function of (D(x)). This can be written as; C(D(x))