Hey, there batgirl177! :)
The formula for the area of a rectangle is:
[tex]l*w[/tex]
[tex]l=length[/tex]
[tex]w=width [/tex]
Lets input the information we know:
[tex]9*4.25[/tex]
[tex]=38.25[/tex]
The area would be [tex]38.25 inches ^2[/tex]
Rounding to significant digits:
Rounding to the first significant digit gives you 30
Rounding to the second significant digit gives you 38
Rounding to the third significant digit gives you 38.3
Rounding to the fourth significant digit gives you 38.25
Hope this helps.
-Benjamin
