A possible answer for #12 could be 12.
as for #13, a possible answer could be 3/4
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i’m sorry if this is incorrect. i truly hope this helps!
Answer:

Step-by-step explanation:
So the "product of" means the answer to a multiplication problem. That means -3 is being multiplied by a number which is squared. I used the variable "n" for number but you could use any letter you want.
This is what we have so far,
x -3 or
(-3)
The term decreased means to reduce or subtract. Which means we are left with....

Hope that helps and have a great day!
Answer:
answer is d
Step-by-step explanation:
Just add the like terms together.