Which of the following is equivalent to radical 20

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

If the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.

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