What is the answer to (×^2+x-12)/(2x-6)

Given the graphed function below which of the following orders pairs are found on the inverse function

Write the percent as a fraction or mixed number in simplest form. 0.8%

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?