Find the answers for A, b , and c.

3. find the radius of circle p.4. find y.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

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?