which equation can be used to find 75 percent of 200?; which equation can be used to find 30 percent of 600?; which equation can be used to find 55 percent of 900?; which equation can be used to find 150 percent of 500?; which expression can be used to find 52% of 230?; find 30% of 150.; 40 divided by 3; what is 40% of 50