Pls help and pls no trolling. Lin says I took the number 8 then multiply that by the square of 3 select all the Expressions that equal lin's answer.
The options are in the picture.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Find the amplitude of a sinusoidal function that models this temperature variation