Find the function value sin120°

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?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

I’m stuck on this equation, anyone got the answer?