You can try with : 30 x 40 x 10. Volume is 12000 and the surface area:
2*30*40 + 2*30*10 + 2*40*10 = 2400 + 600 + 800 = 3800. This is a surface area between 3200 cm² and 4000 cm².
Answer:
2/5
Step-by-step explanation:
first, we convert the mixed fractions to improper fractions,

so then we find what 




= 
and that equals
, which equals
. We can simplify that to 2/5
Answer:
The second company is a better deal
Step-by-step explanation: