The sum of two numbers is 39. The second number is 6 more than half of the first number. Let a represent the first number and let b represent the second number. What are the two numbers? Use the table to answer the question. Numbers a b a + b = 39 Check b = one-half a + 6 20 19 39 22 17 39 24 15 39 26 13 39 20 and 19 22 and 17 24 and 15 26 and 13

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