4x/2+11x-20=0

solve for quadratic formula

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

43lbs of tomatos cost $387. how much would 41lbs cost

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?