1st way
To solve this we need to know ratio.

Now we can see that odd numbers of geometric sequence are positive and even numbers are negative. 91 - odd number, so it will be positive. If ratio is equal to -1, than 91st number is

2nd way
Firstly, we need to find ratio.

Secondly, we need to use this formula


Total sales = $3600
Commission earned on $3600 = $576
Commission rate can be calculated as = 
= 16%
Hence, commission rate is 16%
Estimate using rate per 100. 24% of 289
Solution: We have to find the 24% of 289,
We know that:






Answer:
7/23, 30.43%, or 30.43
Step-by-step explanation:
23 total animals, 7 chickens
7 divided by 23 is 30.43
Hope this helps (again)
Step-by-step explanation:

So, coefficent is 10.
6) =

So, radicand is

So,
5) = 10
6) = 7