​Boden's account has a principal of ​$800 and a simple interest rate of 3.2​%. Complete the number line. How much money will be in the account after 4​ years, assuming Boden does not add or take out any​ money?

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.