Help please I got suck on this problem as well

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

What is the area of the trapezoid shown ?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total