Which steps would be used to solve the equation? Check all that apply.
2 and two-thirds + r = 8
Subtract 2 and two-thirds from both sides of the equation.
Add 2 and two-thirds to both sides of the equation.
8 minus 2 and two-thirds = 5 and one-third
8 + 2 and two-thirds = 10 and two-thirds
Substitute the value for r to check the 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