CAN SOMEBODY PLEASE HELP ME

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.

Can someone me with the property questions for 12 13 and 14 plz

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48