construye el histograma correspondiente a las clasificaciones numéricas y calcula la calificación media teniendo en cuenta la tabla 6.16 insuficiente [0.5) aceptable [5.7) sobresaliente [7.9) execelente [9.10)​

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75