John earns £600 a month. He spends ¼ of this money on rent. James spends ⅖ of the money on food and bills. How much money has he left? pls help I'm begging u !!

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 .