Answer:
-1/2
Step-by-step explanation:
this is the answer
a 65
b 650
c 52
d 3
2.65 + 3.78 = 6.43
B, D are equal to 6.43
x = 48
It is a 90 degree angle. So first you would subtract 42 from 90 degrees. Then you'd get your answer! Hope this helped