A system of equations is given below. For what value(s) of x is f(x)=g(x) ? f(x)=x2+3x

g(x)=x+3

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?

Aline passes through 3,7 and 6,9 what equation represents the line

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?