un tren de carga de que viaja de barrancabermeja puerto berrío inicia su viaje a una velocidad de 30 km/h y 15 segundos incrementa su velocidad a 90 km cual es su aceleracion

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Which of the following is the sum of 3 1/6 + 6 3/8?

Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?