Solve the area formula for a triangle, A=1/2 bh, for h

For the following sequence determine the common difference (if it is an arithmetic sequence) or the common ratio (if it is a geometric sequence).

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

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?