Elena bought a backpacking tent to take with her on hiking trips. 2a) She needs to buy a rain proof tarp for the tent that will cover all 4 sides, as well as protect the ground underneath. Which size tarp should she purchase? *

1 point

a) X-Small: 16 ft²

b) Small: 34 ft²

c) Medium: 88 ft²

d) Large: 104 ft²

e) X-Large: 144 ft²

2b) If the tarp that she buys does not work and the tent fills up completely with water, how much water would it take to fill the tent, if the tent is 8.75 ft tall? *

1 point

a) 140 ft³

b) 144 ft³

c) 48 ft³

d) 46.7 ft³

e) 36 ft³

With this one. will mark brainliest

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:

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?