Can someone plz help me with these two?
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Mathematics, 21.06.2019 18:00
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?
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Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply
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How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?
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