Help, please the question and thank you

Which of these choices show a pair of equivalent expressions?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

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.