Hey there, I'm stuck on a queston, i need an urgent help

Suppose the total cost of a representative perfectly competitive apple producer is given as TC 2 12 + 6:; + qz. All apple producers in the market are assumed to be identical. Suppose further that the demand for apples is estimated as Qd = 18,000 500P and market supply is Q = 2,000 + 500P. e. [2 points] What is the number of companies in the market in the shortrun? f. [5 points] Using the assumptions of the perfectly competitive model, comment on what will happen in the market in the longrun. What will be the new equilibrium price? What will be the number of companies? Assume input prices will remain the same, no matter what, regardless of the number of apple producers in the market