Angie went shopping for her son’s graduation party. she spent $281 on food, $143 on paper goods, and $164 on decorations. what is the total amount she spent on the party?

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

When only separate discreet points are graphed it is called?

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum