A car rental company's standard charge includes an initial fee plus an additional fee for each kilometer driven. The standard charge S (in dollars) is given by the function =S+18.950.40K, where K is the number of kilometers driven. The company also offers an option to insure the car against damage. The insurance charge I (in dollars) is given by the function =I+4.800.25K. Let C be the total charge (in dollars) for a rental that includes insurance. Write an equation relating C to K. Simplify your answer as much as possible.

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.