Muddy’s bakery and lilly’s sweetshop both sell cupcakes. the market price of one chocolate cupcake is $2.50. muddy’s is willing to sell a cupcake for as little as $1.65; lilly’s is willing to sell a cupcake for as little as $1.75. what is the total producer surplus for the two firms?

You wish to retire in 13 years, at which time you want to have accumulated enough money to receive an annual annuity of $23,000 for 18 years after retirement. during the period before retirement you can earn 9 percent annually, while after retirement you can earn 11 percent on your money. what annual contributions to the retirement fund will allow you to receive the $23,000 annuity? use appendix c and appendix d for an approximate answer, but calculate your final answer using the formula and financial calculator methods.