Answer:
m∠2 = 85°
Explanation:
Since ∠1 and ∠2 are complementary you can look at it as..
m∠1 + m∠2 = 90° (Since their sum would have to be 90)
Substitute m∠1 for 5° and solve..
5° + m∠2 = 90°
Take 5°, put in on the right hand side of the equation, and change its sign..
m∠2 = 90° - 5°
Solve:
m∠2 = 85°
Hope this helped!