Jessie has $5.40 in nickels and dimes. she knows that the total numbers of coins is 68, and the equation to represent this is n + d = 68, where n is the number of nickels and d is the number of dimes. if jessie needs a system of equations to find the number of each type of coin, what is the second equation of the system? a. $0.05n + $0.10d = 68
b. n + d = $5.40
c. $0.50n + $0.10d = $5.40
d. $0.05n + $0.10d = $5.40

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