Larry was paid a total of $30 for raking leaves for 8 hours. This rate is constant. What will be the total amount that Larry will be paid for raking leaves for 20 hours of work

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.