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@edscoble
If I were you, take it to a LBS and ask them if the chain is worn or not, if it is, you may need to replace the chain.
there's a chance the entire drivetrain may also need replacing if it's worn beyond to the cassette as well as the chainring.
check the rims for wear - if the braking surface feel flat (not concaved), then a new brake pads is all it needed.
gear/brake cable, if it felt a bit stiff/hard to shift, it may need lubicated, or worse, replacing the cable.
hard to tell without looking at the bicycle.