Luis y teresa tienen 7500 pesos ahorrados el triple de lo que tiene luisa menos de lo que tiene teresa es 4500 pesos cuanto ahorro cada una

What is the missing constant term in the perfect square that starts with x^2 -20x

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

Find the distance between (7,-6) and (-3,-9)