3 1/2 pound = 7/2 pounds.
We know that the dog eats 7/2 (3.5) pounds every 21 days since there are 7 days in a week and Mr.Z only buys dog food every 3 weeks.
Set up a proportion. <u>3.5 lb</u> = <u> x </u><u>
</u> 21 days 365 days
<u>
</u>Cross multiply and divide. 3.5 lb x 365 days = 1277.5 / 21 days = 60.83 lb
<u>
</u>
D because the submarine started at sea level and ended 400 meters BELOW sea level.
Answer:
10
Step-by-step explanation:
These are called integer numbers.
We start with natural numbers (or whole numbers), i.e. the set
When you add the opposite of each whole number, you have the set of integers:
