|RZ|=0.5|SW| therefore 2|RZ|=|SW|.
5x - 20 = 2 · 30
5x - 20 = 60 |add 20 to both sides
5x = 80 |divide both sides by 5
x = 16
a.
In order to find the common ratio, we just need to divide a term by the term that comes before it.
So using the terms 20 and -5, we have:

b.
The recursive rule can be found with the formula:

Where an is the nth term and q is the ratio. So we have:

c.
The explicit rule can be written as:

Where an is the nth term, a1 is the first term and q is the ratio. So:
Answer:
A. 35 million
B. $1519 increase
$7719 year end
Step-by-step explanation:
Total = Principal * (1+(rate/n))^n*years
Total = 1,200 * (1.015)^14
Total =
1,200 * <span><span><span>1.2317557307
</span>
</span>
</span>
<span>Total =
1,478.11</span>
Source:
http://www.1728.org/compint3.htm
The pages would be 166 and 167