The fixed and variable costs to produce an item are given along with the price at which an item is sold. Fixed cost: $4992 Variable cost per item: $23.30 Price at which the item is sold: $27,20 Part 1 of 4 (a) Write a linear cost function that represents the cost C(x) to produce x itemis. The linear cost function is C(x)= Aternate Answert Part 2 of 4 (b) Write a linear revenue function that represents the revenue R(x) for selling x items, The linear revenue function is R(x)= (c) Write a linear profit function that represents the profit P(x)for producing and selling x items. The linear profit function is P(x)= Part: 3 / 4 Part 4 of 4 (d) Determine the break-even point. The break-even point is items.