I'm a bit confused on this. I have to draw a solution set for the following quantities.

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

True or false? a circle could be circumscribed about the quadrilateral below.

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