Will mark brainliest!                                                                                                                                                       use the four-step procedure to solve the following problem. how much water must be added to a gallon of 10% saline solution to create a 2% solution? 1. there is 1 gallon of        % solution. options are 10 or 2. 2. there is        % saline in water. options are 2 or 0. 3. the equation is        . options are (0.1)(1) + 0x = 0.02 (x+1) or (0.1)(1) + 0x = 0.02 x 4. the answer is            gallons. options are 4 or 3.