Dave and his family are trying to decide what fair to go to. The delaware county fair charges 21 dollars to get in and 1.75 per ride. He wasn't sure about the cost for the franklin county fair but saw an ad that said it would cot 25 dollars to get in and ride 4 rides or 40 dollars to get in and 10 rides. Create a table, graph and equation showing the cost at two fairs would be the same where x is the number of rides and y is the cost. After how many rides is the cost the same and how much is it