Let dequals{14,17,19}, eequals{14,16,17,18} and fequals{13,15,16,17,19}.
list the elements in the set d union e.

Step-by-step explanation:

Given the elements in sets,

{}

{}

{}

∪ is asked to be found.

Now it is clear that is unnecessary for this question.

∪=∩

∪={14,17,19}+{14,16,17,18}-{14,17}

∪={14,16,17,18,19}

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1/3

step-by-step explanation:

to find this, you can divide 12 by 4 which is 3 or you can multiply 4 until you reach 12 (4x3=12). both should give you 3, meaning theres three times less bananas than there are oranges.