1 1/2 pounds is how much her puppy gained altogether
Combinations = n! / (n - r)! r!

In this case:
n = 4
r = 3
Combinations = 4! /(4-3)! 3! = 24/(1)(6) = 24/6 = 4
Answer:
4 arrangements
At 0 weeks she had 75 L water remaining in the barrel (0, 75)
Since she used 5L each week, then at 15 weeks she had 0 L remaining (15, 0).
Answer: Top Right graph
Answer:
21
Step-by-step explanation:
(3÷4)×(28)=