On a number line what does it mean when it said find the ratio of dh to ce when d=30 h=70 c= 20 and e= 40

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

W-16=-12 solve each one step equation 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