What is 1/4 shaded of 8 piece bar graph

2 bars shaded, or 8 / 4 = 2

Area can be found by using the formula A=lw. Just plug in the area for A and subfe you don't know l or w substitute then with x. Your new formula becomes Area= x times x which equals Area= x^2. Your formula is Area equals X to the second power. Hope that helps!!!