Question: Marty and Biff were both running for student council president. A poll was taken to see how the candidate's campaigns were going. 45% of the people polled said they were voting for Biff and 8% were undecided. The rest said they are voting for Marty. If 200 people were polled, how many said they are voting for Marty?
Answer with step-by-step thinking: If 45% of people were voting for Biff + 8% were undecided = 53% were not voting for Marty. There were 100 53 = 47% voting for Marty. If 47% of 200 people were voting for Marty, 0.47 x 200 = 94 people said they were voting for Marty.
So the answer is 94.

Question: Iain has 200 pennies. He realizes that 30 of his pennies are older than he is. If he wishes to get rid of these pennies and then throw out 20% of his remaining pennies, how many will he have left?
Answer with step-by-step thinking: Start with taking out the older pennies 200 pennies - 30 pennies = 170 pennies. Take the 170 pennies * .20 = 34. 170 pennies - 34 pennies = 136 pennies.
So the answer is 136.

Question: Francine has five full boxes of crayons and 5 loose crayons, and her friend has 27 loose crayons. They need to put all of their loose crayons in a box. How many more boxes do they need if Francine has a total of 85 crayons?
Answer with step-by-step thinking:
Francine has 85 - 5 = 80 crayons in total that are in the boxes. Thus, each box of crayons is filled with 80 / 5 = 16 crayons. A total of 5 + 27 = 32 crayons need to be placed in the boxes. Therefore, they still need 32 / 16 = 2 boxes for the loose crayons.
So the answer is 2.