Find the length of each arc. Use the exact answer

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?