I’ve been stuck on this for days pls help

Answer:
1120 inches squared
Step-by-step explanation:
change the 4 separate boxes into a single box with dimensions 10 by 12 by 20 (5+5+5+5=20) then find the surface area:
2(20*12 + 20*10 + 12*10)=2(240+200+120)=2*560=1120