The half life of a certain substance is about 4 hours. The graph shows the decay of a 50 gram sample of the substance that is measured every hour for 9 hours. Which function can be used to determine the approximate number of grams of the sample remaining after t hours? y = 25(0. 15)t y = 25(0. 85)t y = 50(0. 15)t y = 50(0. 85)t.

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.

When was napoleon banopart born?

Aconstruction crew was made up of 88 men and the rest women. if 40% of the crew were men, how many people were in the crew?