You have 2,088 grams of a radioactive kind of xenon. how much will be left after 18 hours if its half-life is 9 hours? so idk.. 18 divied by 9 then.. idk

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

Ineed with math stuff it involves graphs

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.