Respuesta :

Answer:

3.9 kg

Step-by-step explanation:

total mass = (number of nails) * (mass of one nail)

total mass = 750 * 5.2 * 10^(-3) kg

total mass = 750 * 5.2 * 10^(-3) kg

total mass = 750 * 0.0052 kg

total mass = 3.9 kg