A mail-order house uses 16,570 boxes a year. Carrying costs are 60 cents per box a year, and ordering costs are $96. The following price schedule applies.

Number of Boxes - Price Per Box

1,000-1,999 $1.25

2,000 - 4,999 $1.20

5,000 - 9,999 $1.15

10,000 or more $1.10

A: Determine the optimal order quantity. (Round to nearest whole number)

B: Determine the number of orders per year. (Round 2 decimal places)