If a = 2 b=-3 then find the value of 2a - 4b

Multiplying an even number of negative numbers gives an answer that is choose from:

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.

Biggest exam of the which of the following are polynomial functions?