Atile pattern on a wall is made up of two identical parallelograms and three identical triangles. each parallelogram has a base of 14 in. and a height of 10 in. the height of the entire pattern is 18 in. what is the area?

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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?