Pls help me its expiramental propability

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

Mikes car gets an average of 28 mpg. there are 12 gallons of fuel in mikes car when he starts his trip of 140 miles. about how many gallons are left at the end of his trip?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?