A goal keeper saved 5 out of 50 shots what is the chance that he will save the next shot

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

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.

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.