(0.00/1.00 point) 0 of 3 attempts 12z, where z represents the Use a system of linear equations with two variables and two equations to solve. A moving company charges a flat rate of $50, and an additional $7 for each box. A taxi service would charge $12 for each box. In parts (a) and (b) of this question, we determined the cost of the 50+7x and the cost of the taxi service was represented by y moving company was represented by y number of boxes. What is the minimum number of boxes you need for it to be cheaper to use the moving company? = Retry (10 variants)