Joslyn wants to buy 4 packs of pens for 12$ each and a pack of pencils for 6$ how much money does she need

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

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.

Two numbers have a sum of -19. one number is x. what expression represents the other number?