the value of r of the geometric series n=11.3(0.8)n-1

General formula for nth term of any geometric series is 
Here 'r' is the common ratio
a_1 is the first term of the series
Now we compare the given formula with general formula
Compare
with 
The value of r= 0.8
Answer:
see the procedure
Step-by-step explanation:
Remember that

To convert feet to inches multiply by 12

To convert minutes to seconds multiply by 60
we have
