The ratio of boys to girls in class is 2 to 8, what percent of the class is boys?

There 6 boys in the class so 6:8

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500

it should be a and d. lmk if i'm wrong xd