Simplify the sum 4/m+9+5/m^2-81 a. 9/(m-9)(m+9) b. 4m+41/(m-9)(m+9) c.9/m2+m-72 d.4m-31/(m-9)(m+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.