A man diving from a platform 30 feet above the water descends 18 feet below the surface. He then swims to the surface how far has he traveled altogether?
A. 48 feet
B. 56 feet
C. 66 feet
If you can please provide the answers to the whole test. Thanks!

Where is the graph function?

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.