Conocer = to be familiar with (usually a person)
Saber = to know (a fact/etc.)
I believe the answer is b. Tomas can decorate 16 gifts with 2 rolls of ribbon because you divide 34 into 2 and you get 17. and since you want to use all of the ribbon the best choice is 16 gifts. Btw plz don't report me if i get this wrong.
Hope this Helps!
Porque
if its wrong its cuz I didn't know any answer choices :)
Balearic sea which is also a part of the Mediterranean Sea. Hope this helped.
You need to provide more information.