What does this mean can someone gelp me

In trapezoid bath, ah=19.7 and et=16.1. identify be.

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Describe the relationship between the angles of similar triangles and the sides of similar triangles