Plz help me with this problem I also don’t understand. Worth 12 points! Only number 8. I need help with.

Me because some of question i don’t understand

The cost for an uberi is $2.50 plus $2.00 mile. if the total for the uber ride was $32.50, how many miles did the customer travel?

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.