Which statement describes the first step to solve the equation by completing the square? 3x^2+18x=21 multiply both sides of the equation by 1/3 . add 9 to each side of the equation. multiply both sides of the equation by 1/9 . add 81 to each side of the equation.

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points