This will probably be the last one today so yeah help

Answer:
A = 974
Step-by-step explanation:
The formula for surface area of a rectangular prism is A=2(wl+hl+hw)
so yeah enjoy freedom for the rest of the day
Answer:
974 inches2
Step-by-step explanation:
Surface Area = 2×(11×8 + 11×21 + 8×21) = 974 inches2