Find the number if: 4/100 of it is 0.8

Jorge planted flowers in his garden he planted one row of 12 tulips and one row of 36 daisies george's friend kylie has a garden with 75 flowers in it kylie's garden only contains tulips and daisies. is it possible for kylie‘s garden she have the same ratio of tulips to daisies as george's garden?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply