Suppose we have the following multiple linear regression model. The variables Online ad budget and Print ad budget are both given in dollars. Predicted number of units sold = 2000 + 1.6*(Online ad budget) + 1.3*(Print ad budget) Overall, whenever the online ad budget increases $200, the predicted number of units sold ____ . Question 7 options: increases 260 increases 320 increases 580 None of the above / not enough information