If y varies directly with x, and y= 20 when x = 5. What is the value of y if x = 45

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?

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year