Ch statement Solve each system. Then Classify it as consistent independent, consistent dependent, or nconsistent. If the solution. If the solution is an entire line, write its equation in lope-intercept format. -4x-y=6
-8x+2y=-12​

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?