Answer:
m<3 = 68°
Step-by-step explanation:
Given that m<7 = 22°, you can use the Alternate Exterior Angles Theorem to solve for m<5, which is also 22°.
Given that m<5 = 22°, you can use the Vertical Angle rule to solve for m<2, which is also 22°.
If m || n and y is perpendicular to m, that also makes y perpendicular to n.
Since y and x are parallel, this makes x also perpendicular to n.
This makes the m<2 + m<3 = 90°.
m<2 = 22°
22° + m<3 = 90°
m<3 = 68°
