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3. The annual number of burglaries in a town rose by 50% in 2012 and fell by 10% in 2013. Hence the total number of burglaries increased by 40% over the two year period. a. What is the mistaken assumption here? b. Why is that assumption incorrect? c. By what percent has the number of burglaries actually changed in the two year period? show calculation d. By what percent would the crime have to decrease in the second year in order for the change over the two-year period to actually be a 40% increase? Round to nearest 10'h percent (ex decimal .05873 is 5.873% to one decimal is 5.9%)_show calculation 4. A store is currently offering a 60% discount on all items purchased. Your cashier is trying to convince you to open a store credit card and says to you, "In addition to the 60% discount you are receiving for purchasing these items on sale today, you will get an additional 20% off for opening a credit card account. That means you are getting 105% off!"