Sirs,

I have a blueprint with a 40' length drawn at 5.375 (5 3/8").

What scale is that and how long is a foot in that scale.

I don't even know if it is algebra or some other field.

If I knew how to write that as an equation, I could have gotten the

answer on an online calculator. But, since I am practically illiterate in

math, I turn to you.

Thank you

Dan