Martha is hiring painters. Paint Plus charges a fee of $45 plus $19 an hour. Remodel 'R Us charges a fee of $24 plus $22 an hour. After how many hours of work will the two companies cost the same?

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?