If the volume for 3-d pyramid a is 400 cm^3 and the volume for pyramid b is 800cm ^3, how many times bigger is the volume of pyramid b than pyramid a?
(a) 2
(b) 0.2
(c) 0.02
(d) 0.002

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

Which expression is equivalent to -12(3x-3/4)