Helpp ill mark u as Brain list

What is the simplified expression for 6(2(y+x))

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.

Which of these triangle pairs can be mapped to each other using a single translation? cof hn