Tina, tamara, tonya, and tommy all work at the local ice cream parlor. tina makes $9.00/hour, tamara makes $9.25/hour, tanya makes $8.75/ hour and tommy makes $10.50/hour. what is your their average salary to the nearest cent.

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.