# Birthday Math in Redwood City

Your child’s birthday party is coming up and they’re ecstatic! They want to have either a roller blading party or a pool party to celebrate the occasion with their friends. For roller skating, there is Redwood Roller Rink in Redwood City. After searching online, you also find Menlo Swim and Sport’s Belle Haven pools in Menlo Park. Your kid can’t wait for their birthday and are eager to help plan their big birthday bash. They know this will involve math so here are some practice math problems for your kid:

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1. You want to invite 16 kids to your birthday party. Including you, there will be 17 children total.

a) At the Belle Haven pool, it costs \$100 for swim admission for 12 children and 4 adult chaperones. It costs \$4 for each additional child. If you host your party at the pool, how much will it cost?

b) At the Redwood Roller Rink, it costs \$100 for up to 25 skaters. For all non-skating guests, there is a \$3 admissions fee. If your mom, dad, grandma, and grandpa are coming with you and choosing not to skate how much would it cost to have your birthday party at the Redwood Roller Rink?

c) Which party would be less expensive? By how much?

2. Cake is your favorite and you want to order a huge cake for your party! If the radius of your cake is 8 inches, what is the area of the cake?

For more math problems and fun, check out Mathnasium of Palo Alto-Menlo Park: http://www.mathnasium.com/paloalto-menlopark