If two pyramids are similar and the ratio between the lengths of their edges is
2:7, what is the ratio of their volumes?
A. 8:343
B. 4:49
C. 2:7
D. 49:4

On an airplane there are two seats on the left side and three seats on the right side there are 90 seats o the right side of the plane

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

Which of the following is true for the relation f(x)=2x^2+1