Find the equation that passes through the points (-1,1) (1,9) (2,7

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?

Find solution of the linear equation y = 2/3x + 1/3

Which of the following circles have their centers in the third quadrant? check all that apply.