1. A-Tunes requires a membership fee of $12 a month and $1 for each download.

Bapstar requires a membership fee of $5 a month but charges $1.50 for each

download. When do the charges for the two companies equal each other?

After 16 downloads the charges will equal each other.

Step-by-step explanation:

First set up an equation

x = Downloads

12 + 1x = 5 + 1.5x

Solve

12 + 1x = 5 + 1.5x < - Rewrite your equation

-5 - 5 < - Subtract 5 from both sides

8 + 1x = 1.5x < - Simplify

-1x - 1x < - Subtract 1 from both sides

8 = 0.5x < - Simplify

8 = 1/2x < - Convert 0.5 to a fraction to make the next step easier

16 = x < - Multiply both sides by 2 to divide by

a fraction