PLEASE HELP so on ed genuity I can't hear the teachers bc of my MacBook fan which is really loud is there a way to turn the volume up on ed my MacBook sound is all the way up and I still can't hear

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

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.

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?