First-class postage is 50.33 for a letter weighing up to one ounce and $0.22 for each additional ounce (or fraction thereof). For example, the cost of postage for 1 ounce would be 50.33 and cost for 1.36 ounces would be $0.55. Let C(@) represent the cost of postage for a letter weighing a ounces. Use this information to answer the questions below. Write "DNE" if the limit does not exist or the function value is undefined. lim C(x) = lim C(x) = lim C(x) = C(2) = Find all x-values on the interval (0, 4) where the function is discontinuous. Separate multiple answers with a comma