You have been directed to build an interlocking concrete block wall (Construction Activity Number 04 22 10.30) (8" block) that is 300 feet long and 5 feet high with reinforcing and grout. You estimate efficiency to be 75%. Using 12 soldiers, how long will it take to build the wall and Chemical clean both sides? Construct the wall. A. Construct the wall. (in hours, round to the next higher number) B. Clean Chemical (in hours, rounded to next higher whole)