of the 720 students at a certain university , 25 percent are seniors . if x seniors were to graduate early and leave the university and no additional students entered or left the university , what value of x would reduce the number of seniors at the university to 20 percent ?
sol : 180 - x = 20 % of ( 720 - x ) 4 x = 180 x = 45 answer : d
subtract(subtract(multiply(divide(720, 25), const_2), const_4), const_10)