Ok math smarties: billy has 2 more green marbles than blue marbles. in all, he has 15 marbles. how many blue marbles does he have?

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

8

step-by-step explanation:

well kind of. you get friend requests. and you can accept them or not so yes.

step-by-step explanation:

what do you mean

have a great day