A leaf hangs from a branch 12 feet in the air it falls to the ground at a rate of 0.25 ft./s which graph could represent the leaves height in feet as a function of time in seconds after leaving the branch

Answer this question, only if you know the answer. 30 points and brainliest!

1- 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. 2- 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. 3- 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 part b?

In the diagram, gef and hef are congruent. what is the value of x