Can someone help me give me the answer and explanation plz

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

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Need on this geometry question. explain how you did it.