13. There are 31 people at a party. The children had 2 scoops of ice cream
and the teenagers had 3 scoops of ice
cream. There were 74 scoops used in
total. Determine the number of
children and teenagers at the party.
27 Girls
Boys

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )