Find the vale of x round to the newest degree

Can somebody plz help me with this

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?