B) The manager of ArtiStand wants to understand which cost is variable, fixed or mixed. Below is the cost schedule of the company. For each cost, indicate whether it is variable, fixed or mixed. For each variable cost, calculate its variable cost per unit. For each mixed cost, calculate its variable component per unit and fixed component using the high-low method. C) Calculate the total variable cost per unit (including the variable component of mixed costs) and the total fixed cost (including the fixed component of mixed costs). D) ArtiStand sells its furniture at $220 per piece. What is its contribution margin per unit? ArtiStand expects to sell 100 pieces in May. What is its margin of safety in units? E) ArtiStand just learned about a new machine that uses wood more efficiently in the furniture production. As a result, it can reduce the cost of wood by $10 for each piece of furniture produced. To rent and operate the machine, ArtiStand will need to spend an additional \$1050 per month. How much would renting the machine change the operating income in May if ArtiStand expects to produce and sell 100 pieces of furniture? F) ArtiStand was approached by a marketer who offers to promote their furniture. They estimate that the marketer can increase their monthly sales from 100 to 120 . (ArtiStand has the free capacity to increase production to 120 pieces per month, so the variable cost per unit and the fixed cost would not change.) The marketer requests a fixed payment of $2450 per month. How much would hiring the marketer change the operating income in May