Airline fares for a flight from Dallas to Austin are $30 for first class and $25 for tourist class. If a flight flight had 52 passengers who paid $1360, how many first class and tourist class passengers were there?

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?

Someone me! if you’re smart you can solve this!