Note: supply 2 is the original supply curve.
6. in the figure above, an increase in the supply of oil would result in
a) shift from supply 2 to supply 3
b) shift from supply 2 to supply 1
c) movement from point a to point c. d) movement from point a to point e

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10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

I’m stuck on this equation, anyone got the answer?