Jamie opened a bank account with some initial amount of money. the account earns simple interest at a rate of 15% per year for 2 years. at the end of that time, the account has a value of $4,000. what was the original amount of money that jamie put in the account?

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?