18
I used a calculator so you’ll need someone else to explain my apologies. I’m tried but I wanted to try and help by giving you the answer
If you have an angle and want to know its complement, you subtract it from 90 degrees. What angle, when subtracted from 90 degrees, gives the same value?
90 - x = x
The supplement of x is the angle that you add to x to make 180 degrees. In other words, 180 - x = the supplement of x.
Answer:

Step-by-step explanation:
because you put each thing to the power
The answer is 30 I’m sure of it