SOMEONE PLEASE HELP ME WITH THIS PLEASE FAST ILL GIVE YOU IF U GET IT RIGHT I FORGOT HOW TO DO IT

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Select the graph of the solution. click until the correct graph appears. |x| = 3

I’m confused on how to work the pie charts