At the beginning of a lesson, a peice of chalk is 4.875 inches long. at the end of the lesson, it is 3.125 inches long. write the two amounts in expanded form using fractions

Acircle has a circumference of 28.36 units what is the diameter of the circle

In a column proof the right column states your reasons

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