A dog groomer charges according to a dog's weight, x kg. If a dog is 7 kg and under, the groomer charges $30. If your dog is between 7 and 15 kg, she charges $40. If your dog is 15 kg and over, the groomer charges $40, plus an additional $3 for each additional kilogram over 15 kg. a. Write a piecewise (hybrid) function C(x), x > O, that describes the cost. [Marks: 3] b. On your own set of axes, graph the function C(x). Clearly label all important points. You can use the graph below as a guide. [Marks: 3] C(x) 60 55 50 4S 4o 35 30 III-I-I-I-I- III-II...- c. What would the groomer charge if a dog weighs 22 kg? [Marks: 2]

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