The store is selling lemons at $0.46 each. Each lemon yields about 2 tablespoons ofjuice. How much will it cost to buy enough lemons to make three 9-inch lemon pies, each requiring half a cup of
lemon juice?

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.

(-0, -7) is your answer