Question 1067255
The equilibrium point is the point where supply and demand are equal. 
We need to find the quantity, q, at the equilibrium price, p.
Setting supply equal to demand we have:
q/1600+9 = -q/2400+17
Solving for q gives q = 7680.
Now we can use either equation to get the price:
p = 7680/1600+9 = $13.80