guys i cant wait to get my maze runner books for my birthday (also free points) lo if anyone wants to start a convo in the comments about maze runner (the movies) thennn please do

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.