Let x = the length of the triangle's hypotenuse
using proportions, this is what the equation looks like:
cross multiply to get:
divide both sides by 45 to get
x=12
The answer to the question is b
Y = f(x)
y = weight of a cat
x = age of a cat
f = some function (unknown in any detail)
Im guessing that your teacher wants you to apply the fact that no matter what order your numbers are in when adding or multiplying your outcome will be the same. So one multiplication fact is 16*147=2352 . Also if you multiply a negative times a negative you will get a positive number so -147*-16=2352 .
I hope this helps a lil:)
Billy has 3,618 cards
201 * 18 = 3,618
18 card per package
201 packages
3,618 cards all together