Why is it that |-5| = |5|?

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Find the zeros of each function. f(x) = x^2 + 5x - 6

Complete the steps to find 4.830 ÷ 5