Joy and cullen put some money into their money boxes every week. the amount of money (y), in dollars, in their money boxes after a certain amount of time (x), in weeks, is shown by the equations below: joy: y = 30x + 20 cullen: y = 20x + 90 after how many weeks will joy and cullen have the same amount of money in their money boxes, and what is that amount? 6 weeks, $150 230 weeks, $7 7 weeks, $150 7 weeks, $230