Julia knows that it costs $25 to take a taxi to work, which is 10 km from her home. she forgets what the fixed cost is, but remembers that the variable cost is $2/km. her friend lives 12 km from julia's home. julia has $60 to spend on the weekend. can she afford a round trip to see her friend?

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