PLZ HELP ME WITH THIS

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

Choose the correct translation for the following statement. it is at most ten. x< 10 x< 10 x> 10 x> 10

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 .