Resuelve lo siguiente:
a) ¿Cuál es el valor númerico de (a - b)? si a² + b2 = 125 y ab = 50?​

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?