100 points answer fast

the statement explains why or why not the ordered pair is a solution to the system of equations.
select true or false for the explanation.

the ordered pair (0,−2)
is a solution to the system of equations because when (0,−2) is substituted into the equations, both equations are true.
−5x+y=−2
3x+5y=−12

true or false

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

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?

Simplify this expression. 8x 16(x + y)