Help me plz ima give u extra point

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

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?

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)