To tell you what it means in any specific context, you'd have to supply us with that context.
However, speaking generally...
"Back forty" usually is a reference to an piece of land, specifically forty acres of land. "Back" could be geographical (the "back" part of the land, i.e. that furthest away from some reference point like a house or road) or metaphorical (the land that hasn't been developed yet, as opposed to land that has been made suitable for farming).
A back forty is a remote part of a farm, or, idiomatically, the most remote or inaccessible part of somewhere.
Forty is a natural number that comes after thirty-nine and before forty-one. It is represented by the numeral 40.
If you mean sixty-eight billion and forty-five thousandths, then it'd be 68,000,000,000.045. If you mean sixty-eight billion forty-five thousands, then it'd be 68,000,045,000.
40.545 in word form is 'Forty point five four five'. NB NOT 'forty point five hundred and forty five'.
4,011 <3 idiot
What does sharp as forty crickets mean
Forty Hour Train Back to Penn was created in 2003.
A back forty is a remote part of a farm, or, idiomatically, the most remote or inaccessible part of somewhere.
The cast of The Back Forty - 2013 includes: Gary Huculak as Charlie
There is no such number as forty ten. If you mean it as fifty, then the answer would be 2500. If you mean it as fifty times forty times ten, the answer is 20000.
cuarenta
Forty is a natural number that comes after thirty-nine and before forty-one. It is represented by the numeral 40.
batman
batman
You mean "What is fifty times one forty nines"? =18000
If you mean sixty-eight billion and forty-five thousandths, then it'd be 68,000,000,000.045. If you mean sixty-eight billion forty-five thousands, then it'd be 68,000,045,000.
Frank gore