Klaus was replacing the roof on his house. he used 420 nails to attach all the pieces. each pieces of wood needed 7 nails to hold it he used 40 pieces of wood. how many pieces were left?

Jack is considering a list of features and fees for current bank: jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements? a. $44 b. $104 c. $144 d. $176