2)) answer is 73
4)) answer is 5(x + 2)
Answer:
<h2>
37°</h2>
Step-by-step explanation:
AB is diameter.
Angle made by diameter on circumference is always 90°

Calculate the sum

Move constant to R.H.S and change its sign

Calculate the difference

Hope this helps..
Best regards!!
the answer would have to be 465
YOUR AMSWER WOULD MOST LIKELY BE (C.)!