Please explain and answer asap

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?

43lbs of tomatos cost $387. how much would 41lbs cost