Its 14.
30-40 is 11, 28-29 is 2, and 41 is 1.
Answer:
13.41
Step-by-step explanation:
Hope it helps!
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
It will cost atleast 78 dollars
