Eight Ball Billiards charges $5 to rent a table plus $10 per hour of gameplay, rounded to the nearest whole hour. The cost of playing billiards for x hours is given by the function f(x) = 5 + 10x. What are the reasonable domain and range?

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.