What is 5 5/7 x 3 1/5
1. 2/7
2. 3 4/7
3. 15 1/7
4. 18 2/7

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

This is different from the first one can someone me

1- 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. 2- 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. 3- 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 part b?