Answer please, tysvm!

We just started the introduction into circles and i have no idea how to do this.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

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 .