M<2 = m<3
but
m<1 + m<2 = 180
4x + 36 + <span>3x – 3 = 180
7x + 33 = 180
7x = 147
x = 21
m<2 = </span><span>3x – 3
m<2 = 3(21) - 3
m<2 = 63 - 3
m< 2 = 60
m<3 = m<2 = 60
answer
</span><span>60°</span>
It's C because the equations are similar
Shaded circles = 4
Total circles = 12

=


as a simplified expression =
We can simplify it even more =

Fraction =

Equivalent decimal = 1 ÷ 3 = 0.33