1. Given (12+3)x, we can sum the numbers in the parenthesis to get 15x
2. Given 12x+3x, we can factor x to get (12+3)x and get the same as 1.
3. Given (12+3x)x, we have to distribute the x and we have 
4. This expression is already simplified.
Answer:

Step-by-step explanation:

Answer:
Im not sure but i think 1535
Step-by-step explanation:
I am not Sydney, but I hope I can answer this question. We know that one sign equals 6 movies, so 18/6=3. B would be your answer.
Answer:
4.5%
Step-by-step explanation:
The tax rate=(2152.6/47800)*100=4.5%