Lisa is quite an athlete, but sometimes trying to get to work in the windy city of Chicago can be a big challenge. Lisa always jogs from her condominium to her office in downtown Chicago, and this distance is 1.75 miles. Lisa likes to keep a steady pace of 704 feet per minute. Unfortunately, Lisa lives directly west of her office, which means her morning jog to work always puts her directly into the wind coming off of Lake Michigan. If s is the speed of the wind in feet per minute, which of the following expressions represents r(s) the speed at which Lisa is moving relative to the total distance of her journey, in terms of s?