A system of equations is created by using the line represented by 2 x 4 y = 0 and the line represented by the data in the table below. X y –1 8 3 –4 5 –10 6 –13 What is the x-value of the solution to the system?.

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?