Question

a comlplementary angle to 31angle has a measure of ?

Answer 1

Complimentary angles add up to 180 degrees.

Answer 2

12.5% of x = 12

Answer 3

I mean 90 degrees.

Answer 4

so is 12.5% of x is 12 a new question?

Answer 5

yea

Answer 6

so if you are taking 12.5 percent of a number, that is equal to multiplying it by 0.125. so you can build an equation that looks like this:
0.125x=12.