Answer:
968 square feet
Step-by-step explanation:
surface area covered
= 2(l + w) *h + lw
= 2(20+18)*8+20*18
=2*38*8+360
=608 +360
= 968 square ft
Total surface area= 608+360= 968 sq ft
Profit =Money left after supplies
This might help:
=2.90d
i think is that hope IT help