What is sales tax?and how do I solve it?

a tax levied on the sale of goods and services that is usually calculated as a percentage of the purchase price and collected by the seller

because they could drop even lower..

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.