Let the number = x
11x is 11 times the number. You are to take 6 less than this. Be careful how you read six less. It means the 6 is subtracted from the 11x
11x - 6 This is what you finally get.
4 pounds of books because 60 oz only equals 3.75 pounds.
If you want 2 and one half in a whole number you will get 2.50.
I'm not sure what you are trying to convey, but you cannot have more than one digit, so this is imposible
-105
Multiply first, then subtract, then add.