0,2,4,0,2,3,2,8,6 what is the interquartile range of the data

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

Use the distributive law to multiply. 3(4x + 5y + 6)

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