Select all that applies

How can we find the measure of an exterior angle if we know the measurement of an interior angle

I’m which figure is point g an orthocenter

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.