Para alimentar a mi mascota compre una bolsa de 30 kg de alimento al día siguiente gaste 2/5 de ella y tres días después gasté 1/3 de lo que me quedaba ¿ cuantos kg me quedaron ?

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Interpret the following expression (5y^2-7)^3/(2y)^2

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x