Answer:
Question 7: I am not very good at recursive rules, so I cannot figure it out, sorry.
Question 8: 1/3
Question 9 a: 75 = How much money per paycheck
Question 9 b: 300 = How much money he started with
Question 10 a: 0,328 = initial amount
Question 10 b: 1.013 = percent increase
Question 11-12: Please submit another picture/question with the full graph.
Explanation:
Question 8:
To find the common ratio you take one term divided by one term: 3/1 = 3
Since it is getting smaller every time, fraction: 1/3, because 3 * 1/3 = 1. 1 * 1/3 = 1/3, and it continues in that pattern.
Question 9 a:
f(p) = 75p + 300
Since p = paychecks, 75 appears to be how much money he makes per paycheck.
Question 9 b:
Since you are adding 300 to his current makings, it appears that 300 is the amount of money he already has.
Question 10 a:
Since t = weeks after beginning, 1.013 appears to be the percent increase, and since original amount times percent increase equals total, 10,328 appears to be the initial amount.
Question 10 b:
Since t = weeks after beginning, you would times the percent increase in order to calculate the increase, therefore 1.013 is the percent increase.
Question 11-12: Please submit another picture/question with the full graph.