What is 80/90 in simplest form

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Find the smallest number by which the given number should be divided to make a perfect cube(with steps or the answer will get reported) a.108 b.2187