Answer:
8. 140
9. 781
Step-by-step explanation:
8. so cut the boxes in half and when you do this you get for the lower box 24 and 12 so for the lower box you do 2 x 24 + 12. For the upper box you get 17 and 29 so for the upper box you do 17 x 2 + 29 + 17. then you add these two together and get 140. 60 + 80 = 140
9. the lower half 12 x 24 = 288 then the upper half 17 x 29 = 493 then 288 + 493 = 781
