Marcus makes an Investment of $2000 and is increasing at a rate of 8% each year. Which equation models the situation? A f(c) = 2,000 (1.8)" B f(x) = 2,000 (0.8)* o f (2) = 2,000 (1.08) O f(3) = 2,000 (0.92)"​

Pls i’m too dumb to know what i’m doing right now

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?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'