To find the first number, just multiply the three numbers together.

To find the second number, multiply the three numbers together along with another number (this number can be anything).

<u>What They Have in Common:
</u><u />- All numbers will be even, since you are multiplying by 2.
- All numbers will end in a zero, since you are multiplying by 5 and also 2.
Answer:
22.05 pounds
Step-by-step explanation:
First, find the total mass in Kg.
We have four bags and they each weigh 2.5 Kg. Multiply the amount of bags by the weight of each bag. 4 bags x 2.5 Kg = 10 Kg of Cat food
Now, to convert from Kgs to Lbs, multiply the total weight by 2.205 (since one Kg is about 2.205 lbs)
10 Kg x 2.205 = 22.05 Lbs
That's a good amount of food for any cat
I think that's how you could set it up? I was gonna show you my work but I think I did it wrong but I believe that's how you would do it and you can solve it by using substitution or elimination. Sorry I couldn't help more!