Stephanie had $325.48 in her checking account. She made deposits of $28.35 and $78.88.
How much money was in Stephanie’s account after the deposits? Show your work.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.