Answer:
Instant messaging is the type of electronic community that allows real-time discussion among members.
I'd say the best option would be B.
Answer:
22.5
Explanation:
My weight = 100 pounds
Sister's weight = 150
Distance from fulcrum = 15 ft
Distance has an inverse proportion with weight
Distance = k/w
Where k is a constant
K = distance x weight
K = 100 x distance
150 x 15 = 100 distance
2250 = 100 distance
Divide through by 100 to get distance
2250/100 = distance
Distance = 22.5
Microsoft power point, ya que es muy facil de manejar y pueden realizarse presentaciones en menos de 20 minutos