What is the area of the shaded sector? Use 3.14 for ? If necessary, round your answer to the nearest hundredth.

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.

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.