Jeff collects stones he wants to put an equal number of stones into plastic cups if jeff can fit 9 stones into a plastic cup how many plastic cups would he need if he has 57 stones

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.