What is x equaled to

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

How do i put 3(x+7) in distributive property

The cost of a taxi ride includes an initial charge of $2.00. if a 5km ride cost $6.00 and a 10km ride cost $10.00, determine the cost of a 15km ride.