Three and 8/9 plus 8/9 in simplest form

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.