30-7g=2 17) x=12 ? Just started algebra a few days ago still confused ahaha

Look at attachment. has all info needed. need

Me d is also an option but i couldn't get it in the picture

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?