To simply 12 ÷ 6 • 3, which operation should be preformed first?

Uh. Using Pemdas, you would multiply (6 x 3) and then divide by 12

12 ÷  6 should be preformed first because it comes first from right to left. But this isn´t always the rule. Perentheses will always come first then multiplication/division, then addition and subtraction. Think of it as PMDAS or, Please Mom Don´t Add Salt! But same thing for addition/subtraction, whichever comes first from right to left you will preform first.

the two may have that, even a breakdown is probably offered

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)