PLEASE HELP!! :) (Look at the picture)

Which of the following statements could be determined to be TRUE?
a. angle A = angle D
b. angle B = angle C
c. line CE = line BE
d. line AC = line BD

The graph below shows the amount of money left in the school’s desk fund, f, after d desks have been purchased. for each new desk that is purchased, by how much does the amount of money left in the school’s desk fund decrease?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?