Which segment is both chord and a diameter segment

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

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