Replacing inner tube on tire

Buying a used wetsuit (i'm a broke college student) for Ironman 70.3. Is this wetsuit a good deal for $40 considering the condition?

New to biking. Just purchased a 2015 Specialized Allez E5 Sport for the Ironman (usually mountain-biked before). Tips on maintenance, gear changes, etc?

Just purchased a 2015 Specialized Allez Sport E5. Any maintenance/how-to-use tips for a newbie?

Fair deal?

Looking for a cheap bike for the Ironman (on a budget since still in college).

Happy National Puppy day!! I’ll be drawing your pets in the comments all day to celebrate! :)