Question

Questão 1 - Calcule:
a) (+8). (+4) =
b) (+12). (-5) =
c) (-9). (-7) =
d) (+6).(-15) =
ME AJUDAAAAAAAAAAAAAAAAA PFVRRRRRRRRRR​

Answer 1

a) (+8) . (+4) = + 32

b) (+12) . (-5) = - 60

c) (-9) . (-7) = + 63

d) (+6) . (-15) = - 90