In a room, there are 8 boys and 12 girls. what is the ratio of girls to boys? which ansewer it is the photo.

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?

Having a hard time understanding this question (see attachment).