12 down is decagon. 7 down is mode. I think 5 down is slope. 13 down is prime. 3 down might be variable. 10 down should be equation. Hope these are right!
Answer:

Step-by-step explanation:
We can apply the distributive property then combine like terms for a simpler equation.

Hope this helped!
Answer:
PLEASE BRAINLIEST
Step-by-step explanation:
400-2a =332
400-332 =2a
2a=68
a=34
That is true. it is part of natural numbers.
Classify real numbers i can possibly help with! hmu! ill help