Ursula wrote the sum 5.815 +6.021 as a sum of two mixed numbers.
what a sum did she write?

On saturday a souvenir shop had 125 customers. sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?

M. xyz =radians. covert this radian measure to its equivalent measure in degrees.

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?