6800*.64= 4352
Ernesto payed $ 4352 in tax
My balance had to go up $30, since my current balance was $15,300 and the interest rate of 18% or 1.5% per month when I payed $200 this month.
As a member of the Federal Reserve Board, in an inflationary situation I would suggest a change in the federal funds rate that would be accomplished by raising the base interest rate of the US economy. This would make bonds more attractive and people would stop consuming to invest in public debt securities. In addition, raising interest rates would discourage credit, causing banks to lend less. Since inflation is a monetary phenomenon caused by the excess of currency in circulation, these measures would have a downward effect on inflation, as they reduce the amount of money in circulation in the economy.
The compound interest formula is:
![A= P(1+ \frac{r}{n} ) ^{nt}](https://tex.z-dn.net/?f=A%3D%20P%281%2B%20%5Cfrac%7Br%7D%7Bn%7D%20%29%20%5E%7Bnt%7D%20)
Where:
A is the amount you will have.
P is the money you are investing.
r: is the interest rate (in decimals)
n: number of times the interest is compounded per year
t: time (in years)
The first thing is converting the rate from percentage to decimal:
![\frac{5.9}{100} = 0.059](https://tex.z-dn.net/?f=%20%5Cfrac%7B5.9%7D%7B100%7D%20%3D%200.059)
Since the interest is compounded every month and a year has 12 months n=12.
Now we can replace the values in our formula:
![A=100000(1+ \frac{0.059}{12} ) ^{(12)(18)}](https://tex.z-dn.net/?f=A%3D100000%281%2B%20%5Cfrac%7B0.059%7D%7B12%7D%20%29%20%5E%7B%2812%29%2818%29%7D%20)
We can simplify the exponents to get:
![A=100000(1+ \frac{0.059}{12} ) ^{216}](https://tex.z-dn.net/?f=A%3D100000%281%2B%20%5Cfrac%7B0.059%7D%7B12%7D%20%29%20%5E%7B216%7D%20)
Finally, we can use our calculator to get 288463.33
After 18 your balance in your bank account will be $288463.33