The diagram below shows a square inside a regular octagon. The apothem of
the octagon is 18.11 units. To the nearest square unit, what is the area of the
shaded region?
15
Apothem length: 18.11

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of