If a function f(m) models the number of hours it take to hike m miles through the jungle, which describes the appropriate domain for the function?
a) all integers where m > 0
b) all integers where m ≥ 0
c) all rational numbers where m > 0
d) all rational numbers where m ≥ 0

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