1. Hillary bought a new house in the city. She wanted to have flowering plants in front of her new house. She bought 8 flowering plants and wish to arrange 4 of the plants in a row. a. How many possible ways can she arrange her flowering plants? b. How did you determine the possible number of arrangements that Nina can do to her flowering plants? 2. An ATM PIN code have 4 digits in a specific order. It contains digits between 0 to 9. a. How many different PIN codes can be made from the given digits if one digit may only be used once? b. How did you determine the number of PIN codes made? 3. Given the name DAVE. a. In how many ways can you arrange its letters, 3 at a time? b. How did you find the possible ways to arrange the letters? pasagot please