The total bill of a meal at a restaurant is 25x – 115. five friends agree to split the cost of the meal equally. what could you do to find the amount that each person must pay

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Apool measures 100 meters by 100 meters a toddler inside the pool and trows a ball 60 centimeters from one edge of the pool. how far is the ball from the opposite edge of the pool

Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?