Find the area of the circle to the nearest tenth.
8 cm

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.

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i