If the population quadruples every period say hour, that means the "rate of growth" is 300%, so whatever the current amount, increased by 3 times as much is 4 times the current amount, or a quadrupled amount.
Yes it is because 18÷6 is 3 and 6×3=18
Answer:
Option d. $22154 is the right answer.
Step-by-step explanation:
To solve this question we will use the formula 
In this formula A = amount after time t
P = principal amount
r = rate of interest
n = number of times interest gets compounded in a year
t = time
Now Lou has principal amount on the starting of first year = 10000+5000 = $15000
So for one year 

= $15900
After one year Lou added $5000 in this amount and we have to calculate the final amount he got
Now principal amount becomes $15900 + $ 5000 = $20900
Then putting the values again in the formula



So the final amount will be $22154.
Answer:
tHE FIRST OPTION
Step-by-step explanation:
A colon is representative of a ratio
for example
1:2 is a ratio
Answer: 8=4x
Step-by-step explanation:
take x's to one side and numbers to other
10-2=7x-3x
8=4x