Margaret has 12 grandchildren. A. This year she is giving each of her grandchildren the same gift. Each gift costs $22.75. How much does Margaret spend on all 12 gifts? Show your work. Margaret wants to save some money for gifts for next year. She puts $330 aside, but then finds out she will have a new baby granddaughter by then. B. She wants to share the $330 equally among her 13 grandchildren. How much will she give to each grandchild? Show your work or explain your answer.

Need to finish my juan wants to build a greenhouse in his back yard. he needs to maximize the ratio of floor area to structure volume in order to provide the most room for plants while minimizing the area to be heated. find the description of the structure that best meets juan’s criteria. a.) a hemisphere with a diameter of 12 feet b.) a cube with a side length of 12 feet c.) a cone with a diameter of 12 feet and a height of 10 feet d.) a square pyramid with a base side length of 12 feet and a height of 9 feet