Answer:
54
Step-by-step explanation:
I think what you mean is y = 12, so I'll just go off that. So we substitute 12 for y and we get 4*12 + 6. Then we multiply. 48 + 6 and we get 54! I hope this helped and please mark brainliest!
Answer:
the last one
Step-by-step explanation:
Answer: $675 hope this helps I tried
-(5x+4)
-5x + (-1)(4)
-5x-4, so D
Note: -(a+b) = -1(a+b) =-a -b
Answer:
C. 
Step-by-step explanation:
Associativity : multiplication is associative that is 
Hence 
<u>Check :</u>
