$315, i cant give a thorough explanation since i did it all in my head but basically amal gets 5 portions of the money and Salma gets 9, meaning she gets 4 more, so if 4 portions is $252 then it cant be any of the others since they are too low or way too high, $315 is the only reasonable one.
Explanation is in the file
tinyurl.com/wpazsebu
.375 because 1/50= .02 and 1/10=.01 which are both less than .375
Answer:
it is not a polynomial it has no degree either .. and we only classify polynomials in accordance with their degrees