Answer:
Step-by-step explanation:
To find the width/length when you know the area and the length or width, you just divide the area by the known side.
45/7.5 = 6
square root of 156.25
that's it
x = 8
x = -8
6,889
<em>Multiply </em>83 x 83.
Therefore, 83 squared is 6,889.
