What would be the square root of 625 using the identity (a +b)2 = a2 + b2 + 2ab?

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Determine which solution is correct for solving 5/7y=6 reciprocals.

Arectangle has a perimeter of 20 cm. the length, x cm, of one side of this rectangle is uniformly distributed between 1 cm and 7 cm. find the probability that the length of the longer side of the rectangle is more than 6 cm long.