Question

me ajudem gente!!! e urgente

Answer 1

Resposta:

3.

a) (-14)×(-3)

-14×-3

=42

b)

$\frac{25}{ - 5} = - 5$

4.

Z*={..., -5,-4,-3,-2, -1, 0, 1, 2, 3, 4, 5....}