# Math

posted by
**Zack**
.

1 Catriona is deciding how large of a cake to order for a party. She can choose from a 1-layer cake that serves

10 people, a 2-layer cake that serves 20 people, a 3-layer cake that serves 40 people, or a 4-layer cake that

serves 65 people. The cost of the cake increases with its size. Catriona has invited 80 friends to her party.

Of the 80 friends invited, 40% have responded that they will attend, 10% have responded that they might

attend, and 50% have responded that they cannot attend. Catriona wants to buy the least expensive cake that

will serve all of her guests at the party. Which cake should Catriona order?

A the 1-layer cake

B the 2-layer cake

C the 3-layer cake

D the 4-layer cake

2 Shawn is jumping rope for a gym class competition. The winner of the competition will be selected as the

captain of the class soccer team. Shawn thinks he can jump rope for 9 minutes. To win the contest, he

only needs to jump rope for 8 minutes. However, less than half-way into the competition, Shawn trips on

the rope and stops jumping. If Shawn jumped 285 times in 3 minute and 45 seconds, what was Shawn’s

jumping rate?

A 76 jumps per minute

B 35.6 jumps per minute

C 31.7 jumps per minute

D 95 jumps per minute