Please help me with this question I would really appreciate it please show work?

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

Suppose you are going to graph the data in the table. minutes temperature (°c) 0 -2 1 1 2 3 3 4 4 5 5 -4 6 2 7 -3 what data should be represented on each axis, and what should the axis increments be? x-axis: minutes in increments of 1; y-axis: temperature in increments of 5 x-axis: temperature in increments of 5; y-axis: minutes in increments of 1 x-axis: minutes in increments of 1; y-axis: temperature in increments of 1 x-axis: temperature in increments of 1; y-axis: minutes in increments of 5

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