What is -8(r-2) + 6(r-2)

What two consecutive odd integers have a sum of -28

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

If value of cos330° is √3/2 then find tan165°.