Margaret and Sam each drew a triangle with a base of length 1 cm. The height of Sam's triangle is one-fourth the height of Margaret's triangle.
How many times greater is the area of Margaret's triangle than the area of Sam's triangle?

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

Find the slope of a line given the following two points

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?