Someone answer this for me and explain how to solve

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?