Joe missed 1/5 of the questions on his math test this week. what percent did joe get right?

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?

What is the value of x in the following equation? -3x-2=2x+8

Determine if the equation defines y as a function of x: 2xy = 1. yes o no