Question 4 (essay worth 10 points) (06.07 hc) an expression is shown below: 6(m + 2 + 7m) part a: write two expressions that are equivalent to the given expression. (3 points) part b: show that one of your expressions in part a is equivalent to the given expression using algebraic properties. explain which properties you used. (4 points) part c: show that your other expression from part a is equivalent to the given expression by substituting a number for m. (3 points)