Someone explain this to ty! (problems like 8-15)

The measure of an angle is 117°. what is the measure of a supplementary angle?

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.

Find the domain and range of the following function f(x) = 51x - 21+ 4