The perimeter P of a rectangle is P=2l+2w, where l and w are the rectangle’s length and width, respectively. Solve the formula for l, the length. Justify each step in your solution.

Catherine saved some money and plans to add the same amount each week to her savings account. the table represents the number of weeks that she will save, x, and the total amount of money that she will have in her account, y. weeks, x dollars in account, y 4 74 6 86 9 104 11 116 which linear equation represents catherine’s situation?