I need help with this!

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second

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 .

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is