How much time should be allowed for a 392-km car trip if the car will be traveling at 120km/h

The point s is where the suppl curve and demand curve meet. Hence moving down to point U would indicate an increase in quantity demanded because a shift to the right on supply curve, ie moving down to point u from point s indicates an increase in supply so that means an increase in quantity demanded. If it were to move the other way, ie to the left, then it would show a decrease in supply and a decrease in quantity demanded.
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