A company sells kites. It sells Basic kites and Designer kites.

2 Basic kites and 2 Designer kites have a total weight of 400 g.
4 Basic kites and 1 Designer kite have a total weight of 440 g.

Basic=g
Designer=g

Work out the weight of a Basic kite and the weight of a Designer kite.

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

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?

With finding limits of multi variable !