Héctor, Irene y Jimena ganan un premio de fotografía de 450 €, y deciden repartirlo de manera inversamente proporcional a los días que estuvieron ausentes en el equipo. Si Héctor tiene 20 ausencias, Irene tiene 15 y Jimena tiene 30, ¿cuánto dinero le corresponde a cada uno de los tres?

is basically a good source of getting and others by what you know for example if someone asked a question and you know the answer you could answer it and get some points or if you need on a question you could make a post about it and wait till someone answers it or just look up the question and see if someone else has asked about it

It is compared to 1700 earlier time

Im thinking a.  at the top left-hand corner