Answer:
m<6=77°
Step-by-step explanation:
Because the angles marked 3x+5 and 4x+7 are same side exterior angles, they are supplementary, meaning that
3x+5°+4x+7°=180°
7x+12°=180°
7x=168°
x=24°
Because the angles marked 6 and 3x+5 are corresponding angles, they are congruent, so:
<6=24*3+5
<6=77°
You need to subtract:
52,000,000
- 31
---------------------------
51999969
Square root (8-0)^2 + (8+7)^2
square root 64+15^2
=8+15
= 23