Abottle holds 3/5 liter of water. sam needs 8 full bottles of water to fill his fish tank. how many liters does sam need to fill the fish tank?

Sam will need 4 and 4/5 liters for him to fill his fish tank

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.