Answer:
n = 90 - 62
n = 28º
m = 180 - (62 + n + 27)
m = 180 - (62 + 28 + 27)
m = 180 - 117
m = 63º
t=10
Step-by-step explanation:
3t + 15 = 45
3t = 30
t = 10