Which ratio is equal to 27 : 81?

If angle ywz = 17, what is angle wxy? ok so i'm confused on this because the triangles are congruent so that means they have the same measurement which would make wxy=17, but don't all triangles have total measures of 180 degress? ?me.

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?