What is 6×6+12+3×2=???

54

Step-by-step explanation:

Use PEMDAS

1. 6 x 6 + 12 + 3 x 2  (multiply 6 and 6)

2.  36 + 12 + 3 x 2  (multiply 3 and 2)

3. 36 + 12 + 6 (combine like terms, so add them)

4. 54 (final answer)

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.