6. Help me with this Including 5% sales tax, an inn charges $199.50 per night. Find the nightly cost at the inn before tax is added. a) Write an equation to model the problem. Let x represent the nightly cost before tax. Answer: I b) Solve the equation to find nightly cost before tax. (Note: Your answer should be in the form $ddd.cc.) Answer: Submit answer Answers (in progress) Score Answer < Previous Ne