Dan has no money at the beginning of the week. each week dan earns $200 salary and a commission of $25 per phone that he sells. at the end of the week dan needs to pay rent. his rent is $610. how many phones does dan have to sell in order to have at least enough money to pay his rent at the end of the week? * write the inequality and solution*

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