In a class of 60 students, 21 sign up for chorus, 29 sign up for band, and 5 take both. 15 students in the school are not enrolled in either band nor chorus. How many students take only chorus.

A. 21
B. 26
C. 24
D. 16

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