Create a module called MathHelpers with the exponent() method that takes a two numbers as
arguments and raises the first number to the power of the second number. Create a class called
Calculator with a method called square_root() that takes the square root of the number
(raises it to the power of 0.5). The square_root() method should use the exponent() method.

module MathHelpers
	def exponent(num, exponent)
		return (num ** exponent)
	end
end
	class Calcultor
		include MathHelpers
		def square_root(num)
			return exponent(num, 0.5)
		end
	end
numnum = Calcultor.new
numnum.square_root(4)