Help!! ASAP! This is for a grade.

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

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

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x