Amodel rocket is launched from the roof of a building at 10 meters. it is launched with an initial velocity of 30m/s. let t describe the time since the rocket has been launched. what is the rocket's maximum height

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?

What percent of 18 is 24? and plz explain thx.

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.