Who uses sound cloud let me know if u do

Which of the following tables represents exponential functions?

What is the greater volume 72 quarts or 23 gallons

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.