Urgent test katie and 11 of her friends split the cost of the birthday gift for john evenly. the rest of the people invited to john's party decided to join in on the gift giving. after evenly splitting the cost of the gift among all of the guests, the amount of money that katie had to spend dropped by 4 dollars and 50 cents. if there were 18 guests at the birthday party, including katie, what is the cost of the gift? eleven fidget spinners cost less than $12. twelve fidget spinners cost more than $13. how many cents does one fidget spinner cost? a perfectly straight 24 ft tall tree grows on the edge of the bank of a 45 foot wide river. a bird sitting at the top of the tree sees a fish in the middle of the river. at the same time as the fish begins to dive straight down, the bird flies in a straight line towards where it knows it will catch the fish. if the fish dives at a constant speed of 3 feet per second and the bird catches it in 2 seconds, how far from the top of the tree is the point where the bird meets the surface of the river?