Plz help

I got the first 2 but not the last one

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

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air

Which graph represents the same relation is the sa which graph represents the same relation as the set {(-3-2)}