Answer:
12
Step-by-step explanation:
all you have to do is simply to find the LCM of the denominators
the LCM of each denominator would be 12
It is C (2, 1) I think it is because they intersect
Answer:

Step-by-step explanation:
Using the Pythagorean Theorem, if you take 8 and square it, you get 64.
You then take 5 and square it giving you 25.
add the 64 and 25 to get you 89 = x squared.
Then take the square roots of x. (Keep in mind, what you do to one side must be done to the other.)
Because 89 is not a perfect square, you can it it as the square root of 89.
About 15 because 9 times 5 = 45 reminder 3 than you add 3 times 5 = 15