The demand equation for the T1-83 graphing calculator is x+7p-1200=0 wherez is the quantity demanded per week and p is the wholesale unit price in dollars. The supply equation is x-18p+875=0 where z is the quantity the supplier will make available in the market each week when the wholesale price is p dollars each. Find the equilibrium quantity and the equilibrium price for the calculators. Equilibrium quantity= Equilibrium price=

To find the equilibrium quantity, we need to set the demand equation equal to the supply equation and solve for the variables.Demand equation: Supply equation: Setting the demand equation equal to the supply equation: Simplifying the equation: Substituting the value of p into either the demand or supply equation to find the equilibrium quantity: Therefore, the equilibrium quantity is 614.4 calculators and the equilibrium price is $83.8 per calculator.