Help! I need this to pass my class

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.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Which expression converts 45 degree to radians