Can Someone Please help me with this problem Find the length of b, rounded to the nearest tenth. (You do not need to find the length of c).

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

What is the multiplicative rate of change of the exponential function shown on the graph?

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?