A glass is 1/3 full. Then 40cm3 of orange juice is poured in. The glass is now 5/7 full. What is the total volume of the glass?

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.