10 or 25 and a lot more pretty much anything that ends with 0 or 5
Answer: 8000
Step-by-step explanation:
For number 12 the answer is 15.36
The answer is

steps
#1) Try to leave a by itself by dividing any variable next to it

you can only divided these variables as all these variables in the original equation. are being multiplied. The opposite if multiplication is division.