what is the length of the diagonal for the given rectangular prism to the nearest whole unit if the length is 8cm, width 3cm, and height is 7cm

(60 points) explain this in detail

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

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?