540 cell phones. 1800 divided by 80 is 22.5, and 22.5 times 24 is 540. (but im not like 100% sure so good luck)
Answer:
This series is divergent
F
Step-by-step explanation:
we are given a series
Firstly, we will find nth term
Numerator:
3, 4, 5,...
so, nth term will be

Denominator:
4,5,6,....
so, nth term will be

so, we can find it's nth term as

we can use divergent test

we can divide top and bottom by n


now, we can plug n=inf


Since, it is non-zero value
so, this series is divergent