How do u do this? How do u put it in an equation. Im stuck

The chart below shows the distribution of weeds in yard

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

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?