Replace x by a suitable least digit so that
a) 394x6is divisible by 4
b) 41x is divisible by 11

Ineed how factor it by finding the gcf

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.