Aflooring company ships 13x13 inch tile in boxes of 11 tiles each, on pallets containing 40 boxes (check work required. )

a) how many square feet does each box contain?
b) how many square feet will a pallet of tile cover?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?