Answer need FAST plz.

Which expression is equivalent to 4 square root 6 divided by 3 root 2

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.