Mr. scruggs got some money for his birthday. he spent 1/5 of it on a dog treats. then, he divided the remainder equally among his 3 favorite charities a. what fraction of his money did each charity receive? b. if he donated $60 to each charity, how much money did he receive for his birthday

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