Draw the truth tables and write the canonical Boolean SOP expressions for the following functions. Minimize those expressions using the Boolean algebra properties. Show each step in the process and label each step with the Boolean property used in that step. The number of terms and literals of the final minimized expression is shown in the parentheses.

$6.f(a,b,c)={\displaystyle \underset{?}{\overset{?}{}}}m(1,2,4,5,6,7)$

$(3$ terms, $5$ literals$)$

$7.f(x,y,z)={\displaystyle \underset{?}{\overset{?}{}}}m(2,3,7,5)$

$(2$ terms, $4$ literals$)$