4. (lpt) Eight athletes are competing in a triathlon (running, swimming, and biking). Awards will be given to the athletes with the best time in each event. In how many ways can the awards be given? 5. (1pt) There are 12 horses in a race. How many different finishes are possible among the top three horses? 6. (lpt) Six students will make their final reports on the last day of class. In how many orders can the reports be scheduled for presentation? 7. (2pts) A four-letter code is formed from the letters A, B, C, D, E, F and G. How many codes can be formed if A. the letters can be repeated? B. the letters cannot be repeated