Alex usually runs for 21 hours a week,
training for a marathon. if he is unable
to run for 3 days, describe how to find
out how many hours of training time he
loses, and write the appropriate integer to
describe how it affects his time. plz

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

Can someone me with the property questions for 12 13 and 14 plz

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