Two regional shopping centers ( A and B ) have the same number of residents. If the distance between them is increased by a factor of 2 , how does this impact the draw of customers (F). Use the gravity model for this calculation: F=[G(m1m2)]/r2 Where: F= size of the trade area; G= Constant; m1= Shopping Center 1 (sq ft.); m2 = Shopping Center 1 (sq ft.) r= distance between the shopping centers Bonus Question No impact or 100% reduced by half or 50% Increases by 25% Reduced by one eight or 12.5% Reduced by to one quarter or 25%