Five balls, numbered 1 to 5, are placed in order on a table. A sequence of steps is performed on the balls. In step 1, the rightmost ball is picked up and put in the middle of the four remaining balls. (The remaining balls are shifted to make room for the inserted ball.) Then in step 2, the leftmost ball is picked up and put in the middle of the four remaining balls. These steps repeat, with the rightmost and leftmost balls alternately picked up and put in the middle of the four remaining balls. Immediately after step N, the balls are in the reverse of their original order. Which of the following is a possible value of N?

The BEV Toy Shop purchased 50 wagons at $45 per wagon less a 40% trade discount on May 8. The invoice had terms of 3/10, 2/20, N/30. On May 18, the shop sent a check for an amount that gave it a credit for ½ the balance due. On May 31, the remaining balance was paid. The shop expects a profit of 30% of cost and 15% of cost for operating expenses. From May until the end of September, the shop sold 40 wagons at its regular markup. From September through December, the remaining wagons were sold with a 35% markdown price. It is your task to determine the following, remembering to show and label all calculations:

Willie left home with a bunch of flowers for Suzabelle. Halfway to her house, he sneezed very hard and knocked the petals off 2/3 of them. He threw away the petal-less ones and hastily went home and added 4 more to the remaining bunch. Opening the gate to her front yard he dropped 4/5 of the flowers he was carrying into a mud puddle. So he picked three flowers from Suzabelle's mother's prize gladiola patch and rang the doorbell. "How lovely", said Suzabelle. "Now I'll have a dozen flowers--I only had 5 before." How many did Willie set out with the first time?