Question

Mim ajuda gente pfvr

Answer 1

Explicação passo-a-passo:

LEMBRANDO QUE: +*+=+,-*-=+,-*+=-

+/+=+,-/-=+,-/+=-

A)-12 *-14=+168

B)-36/+2= -18

C)+47*-15= -705

D)-336/+12= -28

E)+142*+9=+1278