______ ways
9). (3 points) Gwen takes here birthday party of 8 kids to "Wild Waves" in Federal Way. They all want to ride the 'Log Flume Ride'. Each log flume car holds 4 kids. How many different ways can they fill the log flume car? (the 8 kids include Gwen).______ ways
10). (3 points) I have a cage containing 9 ping-pong balls. How many different ways can I pull 3 ping-pong balls out of the cage?______ ways
11). (3 points) A committee has 6 members. They want to select a group of 2 (a leader and a helper) to talk to the principal. How many ways can they form a group of 2?______ ways
12). (3 points) Our family of 4 has weekly meetings. At each meeting, one member takes notes, one controls the meeting, and one comes up with next week's menu. If we change positions every week, how long can we go before the job assignments repeat?______ weeks
13). (3 points)[Extra Credit] If I throw darts at this target and every dart hits the target, what is the probability that a randomly thrown dart will hit the inner circle?
Probability = _____