Answer:
x=16
Step-by-step explanation:
complementary means 90 degrees so
42 +3x = 90
3x=48
0
3x+2=2
or, 3x=2-2
or, x=0/3
:. x=0
N___________________<u>M</u>_______O
76 15
NO = MN + MO = 76 + 15 = 91