Y=x-3 and 2x-4y=8 can you help me please

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

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?