PLS HELP ME PLS

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.

For what value of (y) is 3^3/3^y =1/9

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73