can you please help me? I've been on this question for 20 minutes already and I have to catch up on my math class.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250