After eating dinner at a restaurant, Brent's bill before tax is
$24.00. The sales tax rate is 8%. Brent decides to leave a
30% tip for the waiter based on the pre-tax amount. How
much money will Brent pay total, including tax and the tip?

Sales tax is $1.92. The tip he will give is $ 7.20. In total he will pay $33.12

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.