Explanation:
The pentagon is not a regular one. If it were, all the angles would be 72, In addition you have to assume that when m has been solved that the m is constant for all angles.
m + 5 + 2m + 3 +3m+2 + 4m + 1 + 5m+ 4 =360
15m + 15 = 360 Subtract 15 from both sides
15m = 360 - 15 Combine
15m = 345 Divide by 15
m = 23
Answer
m + 5 = 28
2m + 3 =49
3m + 2 = 71
4m + 1 = 93
5m + 4 = 119
The total does come to 360