Answer:
1. 7
2.-5
4.20
5.1
6.1
7./8.2 variables
9.3variables
10. 25
11.0
12. 1
13. 2
14. 3
15. 5
16. -5
17. 3
18.
19 .28p
hope this helps u
Step-by-step explanation:
I am unable to answer some questions
I'm not sure about this but will give it a try:
Let f(n) = 2xⁿ - 2
Then f(3) = 2x³ - 2
So, f(2) = 2x² - 2
Answer: 60°
Step-by-step explanation: 180 - 120 = 60.