There's simple interest and there's also compound interest.
the difference is that, with simple interest, what you earn is a percentage of the "original amount you deposited", so if you deposited say 1000 and you earn 10% APR, you only get 100 bucks a year, 1st, 2nd, 3rd 20th year, no matter what year it may be, is always 10% of that original 1000.
so, in short, if you earned 75 bucks in the first year, well, for simple interest, that won't change for any subsequent year.
I believe this is right:
Least: 8 (length) x 1 (width) = 8
Greatest: 5 (length) x 4 (width) = 20
Difference: 20 - 8 = 12
If my clothes are clean, then I do not have to do laundry.
The value or outcome would be -6.25 .