\:\begin{pmatrix}1&2&3\\ \:1&1&1\\ \:0&2&1\end{pmatrix}\begin{ pmatrix}6\\ \:-2\\ \:5\end{pmatrix}\:-R1+R2→\:R2

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

The measure of an angle is 117°. what is the measure of a supplementary angle?

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.