On joining a real estate firm, an employee must choose one of two salary options based on the weekly net profit. Let xdenote the weekly net profit in dollars. . Option A: The weekly salary A(X) is $200 plus 5% of the weekly net profits. 0 Option B: The weekly salary B(X) is $400 plus 10% of the amount of the weekly net profit that is greater than $5000. What is the interval of weekly net profits such that Option A's salary is greater than or equal to Option B's salary