Choose the point slope form of the equation below that represents the line that passes through the points (-6,4) and (2,0) Y+6=2(x-4) Y-4=2(x+6) Y+6 = -1\2 (x-4) Y-4=-1\2 (x+6)

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?