Problem A

Puppy Plans

Robbie wants to get a puppy, so he decides to help pay the costs. He wants to donate \(\$60\) to the animal shelter he gets the puppy from, and he needs to contribute \(\$10\) every month to help buy the puppy’s food.

How much money does Robbie need to help pay the cost of getting the puppy and feeding the puppy in the first year?

Robbie needs to save the money calculated in part (a) before getting the puppy. He has \(\$87\) in his piggy bank. He earns a \(\$7\) allowance every week for doing his chores. How long will it take Robbie to earn the rest of the money he needs?

**Themes:** Algebra, Number Sense