Se tiene dos terrenos para construir en la ciudad de Venezuela, el primero mide 2768,25 km² el segundo mide 3958,47 km ¿Cuantos Km² se construirán en total? DATOS RASONAMIENTO OPERASION RESTA​

If i have 20$ and i gave 5$ away how much i got

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An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.