The half-life of ZN-71 is 2.4 minutes. Given you start with 50g of the material, how many minutes will pass before you have 5g left?

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

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