1 hour = 3600 seconds.
Multiply total hours by 3600.
2.26 hours x 3600 = 8136 seconds.
The answer is D.
Answer:
A (2,1)

So, right off the bat, you can tell that the ordered pair (2,1) is most definitely NOT the solution to this system.
If the width is 12 and the length is 18, the perimeter of the rectangle is 12 + 12 + 18 + 18, or 60. So yes the perimeter can be 60.