Answer:
Step-by-step explanation:
cost function
Cost for x tambs is the sum of start-up cost and per-unit cost multiplied by the number of units.
 c(x) = 18263 +1.14x
revenue function
Revenue from the sale of x tambs is the product of their price and the number sold.
 r(x) = 4.06x
profit function
Profit from the sale of x tambs is the difference between the revenue and cost:
 p(x) = r(x) -c(x)
 p(x) = 4.06x -(18263 +1.14x)
 p(x) = 2.92x -18263