Tom Sawyer is painting a fence white. Each fence post is 5 inches wide and there's 3 feet of fence between each post. If there are 4 posts and the fence starts and ends with a post, how long is the fence Tom's supposed to paint?

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before