Acompany that manufactures small canoes has a fixed cost of $18,000. it costs $20 to produce each canoe. the selling price is $80 per canoe. (in solving this exercise, let x represent the number of canoes produced and sold.) for this exercise, a. write the cost function, c. b. write the revenue function, r. c. determine the break-even point. describe what this means.

A) Cost is the total of fixed costs and variable (per unit of product) costs. Of course, the per-unit costs are multiplied by the number of units to determine their total amount.
  C(x) = 18,000 +20x

b) Revenue comes from selling the product. It is the sale price of each product multiplied by the number of products sold.
  R(x) = 80x

c) The break-even point is that point where revenue and cost are equal. That is, revenue from product sales just covers all the costs of producing that product.
  R(x) = C(x)
  80x = 18,000 +20x
  60x = 18000
  x = 18000/60 = 300
The company will break even when it produces and sells 300 canoes.

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )