19 4/12 + 17 2/11 - 16 6/9 = The answer was actually given to me through a download worksheet but I can't come up with it so I need it totally worked out. My answer comes to 20 -5/33 but the answer should not have a negative numerator in it and the answer given was 19 28/33

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

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?

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal