Appreciate the quick responses, but all of this is foreign to me. Im not sure what type of bike i have because I've always called it a St bike that has about 15 speeds. Its not a touring bike because the wheels are not super thin and i know the difference in wheels for a mountain bike. I dont know what bike is best for me, im just hoping to find one that can support me and thats good for the city ( hills and such). With a quick google search i came across Worksman cycles. Thats how simple im trying to keep it, but not sure yet if they have more than 3 speed bikes which wont be too good for hills but again i dont know. My biking purposes will not replace my vehicle but will aid me on short errands (2-4 miles round trip) riding to my fiance's job (3 miles round trip)for lunch multiple times a week and just exercise which end up being 10 miles round trip.