Find the ratio of the areas of the squares PQRS to ABCD where PQ=9cm and AB=5cm?

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb