A snail is 20 inches above the ground. It slips down 6 inches and then creeps up 12 inches. What is the snail's height now?

Can someone me with these two circle theorem questions asap?

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

What is the ratio of the length of an object in yards to the length of the same object in miles?