The correct answer is
A. Divide both sides by 6 and then add 2. The solution is x=8
Answer:

The number is 8 because 
And if you add 4, you get 20
Hence, the number is 8
Answer:
Step-by-step explanation: put your fraction 6 over 15
Answer:
b
Step-by-step explanation:
For number 12 you need to make an expression using the information given. a) 25g + 18r + 15b could be the expression.
b) The variables would be 25g for the 25 gold seats, 18r for the 18 red seats and 15b for the 15 blue seats.
c) Plug in the number given according to the variables.
25(100) + 18(250) + 15(200)
2500 + 4500 + 3000
7000 + 3000
$10,000