Step 3 P x R x C x P x 373x 73x 3900 300x 3900 b What is the profit on 343 items Find P 343 P x 300x 3 900 P 343 300 300 3900 In the equation for P x the profit in dollars is represented by P and the number of items produced and sold is represented by x Therefore to find the profit when 343 items are sold we substitute 343 for in the equation P x 300x 3 900 73x 3 900 into P x R x C x Simplify the result by collecting like terms 73x 3900 3 900 Awesome