Adecorative fish tank is in the shape of a right rectangular prism is shown in the diagram. what is the volume of the fish tank? 18 m³ 2212 m³ 2614 m³ 105 m³

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?