1. Find all real solutions to the equation (x-2)^2-25=0
2. The demand function for a product is p=100-10q where p is the price in dollars when q units are demanded. Find the level of production that maximizes the total revenue and determine the revenue. q= units R= $
3. A farmer wants to fence a small rectangular yard next to a barn. Fence for side parallel to the barn will cost 55 per foot and the fence for the other two sides will cost 35 per foot. The farmer has a total of 1650 dollars to spend on the project. Find the dimensions for the yard that will have the largest possible area. The side parallel to the barn should be ______. And the other two sides should be _______ feet long each.