1.) 5/8 divided by 1/4= 2.) 3/10 divided by 5/6=
3.) 8/15 divided by 4/5=
4.) 7/9 divided by 2/6=
5.) 12/18 divided by 3/2=

1- 5/2

2-9/25

3-2/3

4-7/3

5-4/9

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.