Are the fare estimates for one person or one car (I have 2 people)?
The Guru Take
One fare for everyone.
For rideshares such as Uber and Lyft, the price is the same regardless of whether you have one person or multiple, assuming everyone can fit in the car. Make sure to request the right size!
Similar thread here:
The similar is true for taxis and limos, but some companies may charge extrafees for extra passengers. However, these fees are usually minimal, ~1USD per person.
UPDATE: Of course, the exception is the likes of UberPOOL, where multiple customers share the vehicle. You can take one friend for the same fare, however.