The length of a particular rectangle is 2 inches less than twice its width. If the area of the rectangle is 40 square inches, find the length and width
length is 6 in, width is 4 in
length is 5 in, width is 8 in
length is 2 in, width is 2 in
length is 8 in, width is 5 in

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?