Rusty's hair grows at the rate of 1 over 4 inch per month.
How many months will it take Rusty's hair to grow 5 over 8 inch?
To find the number of months it will take Rusty's hair to grow 5/8 inch, we need to divide 5/8 by 1/4.
(5/8) / (1/4) = (5/8) * (4/1) = (5 * 4) / (8 * 1) = 20/8 = 2.5
Therefore, it will take Rusty's hair 2.5 months to grow 5/8 inch.