PLEASE HELP Samuel collects seashells at the beach each summer. The function, f(x), summers. f(1)=15f(x)=f(x−1)+6

Complete the table to represent the number of seashells in the collection after the first four summers.

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.