What is the supplement of 122 degrees

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g