Ms. Holly had a gift card with a $375 balance. She bought several CDs that cost $17 each. After the purchase, her gift card balance was $239. Which equation can be used to determine the number of CDs, d, she purchased? PLEASE SHOW YOUR WORK
WILL MARK BRAINLIEST!!!

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