I need urgent help ill give brainliest

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.

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

Find the solution of each of the following.