B because of you do 1/4 times -144 you will get 36 which is equivalent to 1/4x - 36
You would substitute all x's with the number 30, so the answer would be f(30)=-1 or y=-1
From the 3 options listed, both

in and

in could be measures found using a ruler with eighth inches marked, because those decimals can be written in terms of eighth fractions.

The other option,

in, is not a possibility because 0.1 cannot be written as a fraction of 8 that is marked on the ruler.
(3 * 15) / 4 = 45/4 = 11....remainder 1....each grandkid gets 11 cards...equaling 44 cards....leaving 1 left for Mr. Dawson