Can someone please help me to solve two questions?

During the critical flow of two-phase fluids through an orifice, the liquid flow rate is almost a function of the tubing head pressure. A. logarithmic B. linear C. hyperbolic D. exponential You have the following production test data from a well producing in a solution gas drive reservoir: A PVT analysis of the reservoir fluid indicates a bubble point pressure of 2200 psia. Based on these data, what is the psia for the average reservoir pressure