Question

The question is on the screenshot

Answer 1

answer is red (C=15+0.2x)

Explanation:

No matter how long your airtime usage is, it will at least cost $15 per month and you have to pay $0.20 per minute/s.

Formula would be (C=15+0.2x)

An example, if she uses 5 minutes of airtime then the equation will be;

C=15+(0.2×5)

C=15+1

C=16

Answer 2

It should be the far right one

Explanation:

c=15+0.20x