PLEASE HELP I HAVE A TEXT TOMORROW

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

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.

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5