I assume the task is to simplify.
Answer:
12/25 is 48% becuase 12/25 is alao 48/100 because 12 x 4= 48 and 25 x 4= 100.
Okay, so for the discount rate let's first make 15% to a decimal. 15% as a decimal is 0.15 and 82.95-0.15=82.80. Therefore, that is the price of the bike with the discount. There's no need to round to the nearest cent I don't think because 80 is a solid number. Hope this helped!
Hm i think it might be 2:8?