16ft and 25ft sorry if i’m wrong
B would be correct cause 5 percent would be .66
So 5 pounds=12.5
divide 12.5 by 5 to get dollars per pound
$2.5 per pouind
1 pound = 16 oz
Her books weigh 9 pounds or (9)(16)= 144 oz
Math Textbook= 40 oz
Biology textbook= 3 pounds or (3)(16)= 48 oz
Total weight of books - math textbook - biology textbook = science textbook
144-40-48 = 56oz
science textbook = 56oz
Just multiply 4*12 and add 6.
answer =54