If Lara has a bottle that contains 1/2 quart of milk. she empties the bottle into 3 glasses How much does she pour in each glass

Hello!
volume of sphere =4/3.pi.r^3

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.