What is this 5x+5 95 degrees

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

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?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?