3. Handy Andy sells 23 oz. cans of green beans for 63 cents and 15 oz. cans for 45 cents. Assume the price varies linearly with the number of ounces.
a. Write a function to express the price in terms of the number of ounces in a can.
b. At the store a 52 oz. can sells for $1.39. According to your model is it over-priced or under-
priced? Explain. (Evaluate f(52) and compare to the price)
c. Suppose an "individual serving" can of green beans costs $0.21. About how many ounces of
green beans would you expect it to contain? (Find x when f(x) = 0.21)