$1,000,000 question: answer these algebra problems

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

If g(x) is an odd function, which function must be an even function?

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .