Kay added the numbers 3.14, 4.2, and 1.6. She estimated the sum would be about 9, but her sum was 37.2. What could she have done wrong?

Trigonometry help asap

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height