Dave has a home in pittsburgh, pa (hdd = 6,000) with a roof area of 1582 ft2. he is considering upgrading the insulation from r-16 to r-28. the estimate for this job from the contractor is $878. dave’s home is heated with natural gas. last year, the average price he paid for natural gas was $12.2/mcf. assuming an afue of 87%, how long will it take dave to recover his investment (in years)?

Which of the following is not a personality trait? sincerity word processing punctuality laziness

Conor is 21 years old and just started working after college. he has opened a retirement account that pays 2.5% interest compounded monthly. he plans on making monthly deposits of $200. how much will he have in the account when he reaches 591 years of age?

When used-car dealers signal the quality of a used car with a warranty, a. buyers believe the signal because the cost of a false signal is high b. it is not rational to believe the signal because some used-car dealers are crooked c. the demand for lemons is eliminated d. the price of a lemon rises above the price of a good used car because warranty costs on lemons are greater than warranty costs on good used cars