Please help me with this.?

Question

The equation for compound interest; A = P( 1 + r/n)^nt. r is the rate and n is the number of times it will be compounded. Try it as compounding quarterly.

Answer 1

You simply plug n = 4 into the above formula:
A = P( 1 + r/4)^4t.
Why?
In compound interest formulas, r is always an
annual rate. So r/4 is the quarterly rate that must be used here.
Also the interest is compounded 4 times a year
so 4t is the number of times it is compounded, if
t is given in years.