From the word problem, we know that:
• Matt earns $6 per hour spreading mulch
,• Matt earns $4 per hour pulling weeds
Since Matt spent 3 hours spreading mulch, we can find his earnings multiplying 3 by $6.
[tex]3\cdot\text{\$}6=\text{\$}18[/tex]Since Matt spent 2 hours pulling a weed, we can find his earnings multiplying 2 by $4.
[tex]2\cdot\text{\$}4=\text{\$}8[/tex]Finally, we add up Matt's earnings from doing both activities.
[tex]\text{\$}18+\text{\$}8=\text{\$}26[/tex]Therefore, last week Matt earned $26.