An investment of $6,599.20 earns 4.2% interest compounded monthly over 7 years. approximately how much interest is earned on the investment?

Find out the how much interest is earned on the investment .

To prove

Formula

Where P is the principle, r is rate in decimal form , t is the time.

As given

An investment of $6,599.20 earns 4.2% interest compounded monthly over 7 years.

4.2% is written in the decimal form

= 0.042

P = $6,599.20

T = 7 years

Put in the formula

Amount = $ 8850.187

Interest = Amount - Principle

             =  $ 8850.187 - $6,599.20

             = $2250.987

Therefore the interest is $2250.987

Option (a) is correct.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !