Scott is selling baseball hats at the store he works at and makes 8% commission on anything he sells. His total sales for one day of work is $760. How much commission does Scott earn from his total sales?

Logical equivalent of the give question is its contrapositive

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.