The answer is 2:3 because it is 12:18 simplified.
For this case we must raise the equation according to the given statement.
Let the variable "x" be the unknown number.
So, three times the number is: 
If to that term is added "6" we have:

The sum of both terms is "12", then:

Thus, the equation is: 
Answer:

-4^3
a^3 r^2
Just add all the letters\numbers and the exponent will be how many of the numbers there are
You would have to first times .03 times 10 then take that times 30,000 which should equal 900