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The circumference of a redwood tree trunk is 18π ft, and it is 100 ft tall. What is the approximate volume of the redwood tree trunk?

810π ft3
3,240π ft3
8,100π ft3
32,400π ft3

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Which set of lengths could represent the sides of a triangle? a. 3, 7, 10 b. 4, 5, 10 c. 6, 8, 14 d. 12, 6, 7

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?