QUESTION 17 The formula for a mixed cost is total cost = total variable cost +(fixed rate x amount of output). total cost total fixed cost + (variable rate amount of output). total cost = variable rate amount of output. None of these are correct. 4.5 points Save Answer QUESTION 18 The method of least squares O is a way to find the best fitting line through a set of data points. O is a statistical way of separating a mixed cost. always produces the same cost formula when used on the same data set. all of these are correct 4.5 points Save Answer QUESTION 19 Which of the following would probably be a committed fixed cost for an accounting firm? O lease of computers O rent on the office building O property taxes on building All of these are correct. 4.5 points Save