The answer to this question is: B;5i
13 is not the same as 1/3! The division symbol is not a symbol used to connect two numbers, it is used to find their quotient. For example, 6/2 would be like saying: You have 6 cookies, and 2 friends. How many cookies does each friend get? The answer is obviously not 62, it is 3! So, the exact quotient is 0.3 repeating. You could memorize this or use the fact that 0.9 repeating is 1.
I believe the answer is 7
you need the ratio of the scale to find the answer.
3/8(4/5)(3/8)(5/4) = (3/8)(4/5)(15/32) = 3/8(3/8) = 9/64
