Bob’s birthday bash was going to cost $200 plus $20 per person at the bowling alley or $250 plus $15 per person at the skate park. How many people would Bob have to invite for the skate park to have the better deal?

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