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Henry can write 5 pages of his novel in 3 hours.
At this rate, how many pages can Henry write in 8 hours?
pages

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

2x minus y equals 6, x plus y equals negative 3

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample