A. Your sweet new bicycle has 3 front sprockets and 7 rear sprockets. Each distinct combination of a front sprocket with a rear sprocket constitutes a different gear on a bicycle. How many gears does your bicycle have?b. Is it correct to say that a particular speed requires a particular front sprocket or a particular rear sprocket, or is it correct to say that a particular speed requires a particular front sprocket and a particular rear sprocket?