A toy plane is thrown upward with an initial velocity of 7 meters per second from an initial height of 4 meters. What is the maximum height of the plane? 6.5 meters 6.5 feet O 0.7 meters 0.7 feet​

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.