Mrs.Kennedy can divide 315 by 10 and then when she gets her answer she can round up to get her answer.
91.5 is the perimeter. It's just 5a.
<h3><em>1st quadrant,</em></h3><h3><em>(+,+) in 1st quadrants </em></h3><h3><em>HOPE IT HELPS !!!</em></h3>
Answer:0.245
Step-by-step explanation: