s #19 - 22, Answer each question. 19. The circumference of a child's head C, is related to the height of the child H, by the equation H(C) = 2.15C - 10.53 where both C and Hare in inches. A. Express the head circumference C, as a function of height H. B. What is the predicted circumference of a child's head who measures 32 inches tall? 20. Find the inverse of the linear function f(x) = mx + b;m # 0 21. In June 2015, you are planning a trip to Japan and find the exchange rate for converting US dollars (x) to yen (v) was y = 123.65x. A. How many yen could you get for $100 U.S.? B. What is the inverse function, and what conversion does it represent? C. While in Toyko, you have lunch in an outside cafe at a cost of 2000 yen. How much was that in U.S. dollars? 22. The consumption of bottled water in the US, in gallons per person, from 2005 to 2011 is shown in the table below. The time, in years, is given by t, where t = 0 corresponds to 2005. 2 3 5 6 f (t) 25.4 27.6 29.0 28.5 27.6 28.3 29.2 A.) What does the inverse represent? B.) Is f - a function, explain? 70