If my birthday was around that time I would be twenty eight years old. 1989-2017 gives me twenty eight
The answer is 1 bc the solution is (1,-3)
16 squared = 256
14 squared = 196
256 + 196 = 452.
The mean is all of them added together divided by the number, so multiple the mean by the number of sides, 3, and that's the perimeter. 18 x 3 = 54
The answer to this equation is 1412 or 21-15
