Sales tax calculated as a percentage of the sales price. if sales tax is 7%, what is the sales tax on clothing that costs $150?

a 15.70

b 10.50

c 9.77

d 7.00

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.