Pete is retiring after working for 27 years at a major bank. The com- pany offers him a flat monthly retirement benefit of $55 for each
year of service. What will his monthly pension be?

The answer would be $68.04

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.

The answer should be 5.