D. Underline the rate, Cicle base, and put a cross in the percentage. 1) 20% of 50 is 10 2) 80 is 125% of 64 3) 8% of 1,200 is 96 4) 48 is 40% of 120 5) Twenty-one is 25% of 84. 6.) 180% of 200 is 360 7.)35% of 90 is 31.5 8.)100 is 4% of 2,500 9.) 51 children, 66 2/3% of them are boys, 34 are girls10.)16 is 20% of 80