o artur e a ivone sao primos e visitam amiude os seus avos, o artur visita-os a cada 8 dias e a ivone a cada 10 dias. tendo em conta ambos visitaram os seus avos no natal, quando e que eles voltaram a encontrar-se na casa dos avos? quanta visitas terao efectuado cada um?

Which of the following describes the symmetry of the graph of y = x3?

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length