Question

4 questions. medal for who answers

1. what are the next two terms of the following sequence? 1, 5, 9...

2.what is the common difference of the following arithmetic sequence? 102, 100, 98, 96...

3. what is the nineth term of the arithmetic defined by the rule below?
A(n)=-14+(n-1)(2)

4. what function represents the sequence 3, 7, 11, 15... (there are a,b,c,d,ect answers if yu want me to post just let me know)

thankyou for help.