6(12+4)=96
Step-by-step explanation:
6(12+4)
  12+4=16
6(16)=96
Is the one part of the problem is so I will edit my answer?
96
6 times 12 + 6 times 4
72+6 times 4
72+24
=96
51840000 cm 2
step-by-step explanation:
there should be an link icon on the bottom of the text box you get. it looks like a paperclip!