A jar contains only pennies, nickels, dimes, and quarters. There are 29 pennies, 13 dimes, and 12 quarters. The rest of the coins are nickels. There are 78 coins in all. How many of the coins are not nickels? If n represents the number of nickels in the jar, what equation could you use to find n?

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?

Choosing a booth location: your manager is sending two people to work at the conference. she wants a booth that will give your company good visibility for no more than 35% of the total budget ($3000). the conference coordinator just told you there are only five booths left. which booth will you choose? write the inequality that shows how much money you can spend on the booth simplify the inequality that shows how much money you can spend on the booth.

Which of the following transformations will always produce a congruent figure?