WILL GIVE BRAINLIEST IF ANSWERED RIGHT: Given the system of linear equations. x-y=5, and 4x+y=10

Part A: Use substitution to find the solution to the systems of equations. Include all of your work in your final answer.

Part B: Algebraically verify your answer to Part A. Include all of your work in your final answer.

Part C: Graphically verify your answer to Part A. In your final answer, include the graph.

Mary had at least an 80% on her test write an inequality to represent this situation

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.

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5