-2f(x) means it is reflected and has a negative slope.
and for the 2 it means that the graph is compressed horizontally by factors of units
if it's less than 2 it would have been stretched, but since it's greater than 1 it is compressed.
Answer:
It takes 47.19 years
Step-by-step explanation:
Your amount on the bank is given by the following equation:

In which P(t) is your current amount, P(0) is the initial amount, r is the rate it changes, and t is the time since the money has been put on the bank.
I put $500 in the bank.
This means that 
I now have $5000 in the bank.
This means that 
Every year my money increased by 5%
This means that 
How long that it takes?
This is t.





We use the following logarithms property:

So



It takes 47.19 years
Answer:
$50
Step-by-step explanation:
120% = 60
100% = x
120x = 6000
x = 6000/120
x = $50
Answer:
all of 'em are exponential functions.