i have two short questions....

1. The cost of a first-class postage in 1970 was $0.06 and in year 2013 was $0.46. Determine the average annual rate of increase in the price of postage stamps during the years 1970 to 2013.

2. What amount must be deposited into a savings account that pays 8% interest if the inflation rate is 10% and you want to set aside enough money to purchase a red tape cutting machine ten years after the deposit? The current cost of a red tape cutting machine is $10,000.