Write the ratio 3/7 to 9 as a fraction in simplest form

If square root x = -7, then x= -49 true or false

What is the measure of angle tvu shown in the diagram below

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.