Please answer ALL question or some ASAP

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.

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

Is there an x intercept in the equation 60*1.15^x