What is −1 2/3⋅(−5 1/4)?

−8 3/4

−5 1/6

5 1/6

8 3/4

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

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

Extra points! find the missing dimension! need asap