You have two investment options: Title A offers a payment of $ 645 in 12 months and another in $ 1,487 in 24 months; Title B offers a one-time payment of $ 2,305 24 months from now. Considering that you require a minimum return of 2% per month from this type of investment, which of the two securities is the best? Choose an option:

A. the two are equivalent
B. the title A
C. the title B
D. neither

What are the choices

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.