What is 8 5/6 x 15/20

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality