21 Jessica owns a store that sells only laptops and Last week, her store sold 90 laptops and 210 tal This week, the sales, in number of units, of lap increased by 50 percent, and the sales, in numb of units, of tablets increased by 30 percent. By percentage did total sales, in units, in Jessica's s increase? A) 20 percent B) 25 percent C) 36 percent D) 80 percent