1. In November of 20x1, when you make your annual budget for the calendar year, you budget $50 per month for pet food for your dog in 20X2. Then on May 1, 20X2 you get a second dog (who eats exactly as much as the first dog), and on August 1, 20X2 the price of dog food increases by 10%.
   1. What is your actual annual cost of pet food for 20X2?
   2. How much is the variance for the cost of pet food for 20X2?
   3. What percentage of the variance is due to getting the second dog?