The sum of geometric series is given by:
Sn=a(1-r^n)/(1-r)
a= first term=$22,600
r=rate=1-0.14=
n=number of terms= 5 years
thus the total amount sold will be:
Sn=22600(1-0.14^5)/(1-0.14)
Sn=$26,277.66
The total amount sold was $26,277.66
Population are always modeled by exponential growth equation given by:
f(x)=a(1+b)^t
where:
a=original number
b=rate of growth
t=time
thus
f(x)=412(1.05)^t
the population after 9 months will be:
f(9)=412(1.05)^9=639.15=639
Carry over the 3, subtract the 8, then look up to the sky and realize how beautiful you are :3
Answer:
9
Step-by-step explanation:
The factors of 18 are : 1, 2, 3, 6, 9, 18
The factors of 27 are : 1, 3, 9, 27
The common factors are : 1, 3, 9
The gcf is 9
