A basic cellular package costs $30 per month for 60 minutes of calling, with an additional charge of $0.50/min beyond that time. The cost formula would be C = 30 +0.50(x - 60), where is the cost measured in dollars and x is the number of calling minutes used. If you cannot have a bill greater than $80, what is the maximum
number of calling minutes you can use?
min
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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