Select all the groups of numbers that are ordered correctly from least to greatest. A, 2,−4,6,−8
B, −13,−16,12,1
C,−110,0.2,310,14
D,−112,−0.75,−0.25,112
E,−8,−34,−3,14

47 - 90 = 43

43 - 180 = x

x = 137

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.

hi im bob : l

step-by-step explanation:

step-by-step explanation: