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David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)