What is the product of (-)

a.18 because you are removing 2 times the number 9
b.18 because you are removing 2 times the number -9
c. -18 because you are removing 2 times the number 9
d. -18 because you are removing 9 times the number 2

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 .