Jim has a lot of television to watch. He finished 1/5 of it on friday night, then 1/2 more of the total on saturday night and then on sunday night he watched 1/3 of the total. If he finished by monday night by watching 1 hour of television how many hours of television did he need to catch up on before he started watching on friday?

Answer this question only if you know the answer! 30 points and

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?