No.
There's no need to pluralise advertising, but you could use advertisments
"Data" is the plural of "datum". And we don't pluralise nouns that are already plural.
Are you talking about Colby cheese? Then you would pluralise cheese to make it Colby cheeses.
If you're talking about the material used to cushion goods in a package, then there's no need to pluralise packing.
You wouldn't add anything to pluralise the surname Muniz, you could just say "The Muniz are coming over"
Cual(es) actividad(es) puede(n) hacerse en verano (The bracketed additions pluralise to 'activities, etc.)
If there is a period after each letter as in "A.T.M." plural would be "A.T.M.'s" If the word is not separated with periods as in "ATM" plural would be "ATMs"
Garfava flour: This flour is a blend of chickpea flour and fava bean flour and can be used like chick-pea flour.
You can make them with what ever kind of flour you like - wholemeal wheat flour, rice flour, spelt flour, corn flour, oat flour, potato flour, the list is endless, its up to you.
AP Flour = All Purpose Flour = Plain Flour
No. Rice flour is made from rice. Plain flour is refined wheat flour. Self rising flour is refined wheat flour with baking powder and salt already in it. Wheat flour has gluten, rice flour does not and cannot be used to substitute for wheat flour.
Some wheat flour alternatives for baking include almond flour, coconut flour, oat flour, and rice flour.