To help evaluate the original report, draw a normal curve for the data Marjin-O'Heara collected. Include the values of the mean and the first three standard deviations in your sketch.

If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Using elimination, what is -4x+2y=-12 4x+8y=-24