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p=S(q)= 2/5q and p=D(q)=100 - 2/5q

where p is the price in dollars and q is the number of 10-gallon tubs.

Find the equilibrium quantity and the equilibrium price.

do i just set them equal to each other??

2/5q=100-2/5q

equilibrium q=125

equilibrium p=50

are these answers correct?