Trinity is going to the movies with some friends and will pay for her own ticket plus her own and her friends' small popcorns. her total cost is given by the following expression: 8.5 + 6x what does the 6x represent?
a. the total cost of the small popcorns
b. the amount of small popcorns she is buying
c. the total cost
d. the cost of the ticket

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:

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day