La otra tarde vi en un parking 39 vehículos, entre coches y motos, a los que les conté un total de 126 ruedas. ¿Cuántos vehículos de cada clase había en el parking?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

Anyone know these questions? i need ,.