What is the value of 4m^2-3n+6 when m=3 and n=4

The expression 42 plus 57 shows how much money nate spent at a store .which expression also shows how much money nate spend

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 radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?