Lenore is going to sell T- shirts at a volleyball game to raise money for the team. She finds a website that makes custom T-shirts. The company charges $11.99 per shirt. This can be represent by the equation y=11.99x

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 .