Fourths, then b. Sorry if late.
Fifty , 50 20+30=50, not sure if its asking much else
11w times 6x
240w times 18y
you always use the last numbers and that would equal...
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66x times 4320y=
285120 divide it by 6= 47520
then by 12
47520 divided by 12=
3960-80= 3880
3880 divided by 16 times 4
your answer is 970y