The sum of the first n terms in a geometric sequence given the first term (a1) and the common ratio (r) is calculated through the equation,
<span>Sn </span>= (<span><span><span>a1</span>(1−<span>r^n</span>) / (</span><span>1−r)
Substituting the known terms,
Sn = (20)(1 - (1/4)^4)) / (1 - 1/4)
Sn = 26.5625
Thus, the sum of the first four terms is 26.5625. </span></span>
Answer:
$22.5
Step-by-step explanation:
2.5% of 900
0.025(900)= 22.5
Answer:
A
Step-by-step explanation:
Sorry for taking so long. Try typing in the whole question on google you will get lots of websites, it wasn't letting me post any here.
All the websites have $45 for the second sentence, but idk if they could help.
And when you figure it out let me know because it was really bothering me. lol
