What is the answer for " leonardo know it is 42 days until summer break .how many week's is it until leonardo's summer break ? ( hint : there are 7 days in a week. ) " i am dying

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Math it's appreciated. (picture provided)

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