La base de un prisma recto es un hexágono regular de 4 m de lado. Calcule su volumen si se sabe que su superficie total es 216 √3 m².

The circumference of a circle is 5 pi cm. what is the area of the circle?

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?