Please help me with this

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Evaluate the expression. (9 + 5)(3 + 2)0

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