_ Homework: HW Score: 9.5 ergo points SEE! : Homework 1 Part '1 cf: Score: 0 err At a price of$2.25 per bushel, the supply of a certain grain is 71% million bushels and the demand is "(500 million bushels. At a price of$2.3- per bushel, the supply is 7500 million bushels and the demand is 7400 million bushels. {A} Find a pricesupply equation ofthe form p=mx+ b, where p is the price in dollars and x is the supply in millions of bushels. {B} Find a pricedemand equation of the form p=mx+ b, where p is the price in dollars and x is the demand in millions of bushels. {C} Find the equilibrium point. {D} Graph the pricesupply equation, pricedemand equation, and equilibrium point in the same coordinate system. {A} The pricesupply equation is p=|:|. [Type an exact answer.)