P=IRT how do I solve for T

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.

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

What is 0.000008 meters in scientific notation