Benjamin runs a storage unit that is shaped like a cube there are 12 identical storage units in each of the facility if it's George unit has a bottom of 125 ft.³ what is the length of each row in the facility

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?