You have $10 to spend on carrots for your rabbits. Compare the prices for two different-sized bags. Which size is a better deal and why?

To determine which size is a better deal, we need to compare the prices per unit or weight of the two different-sized bags of carrots. As the sizes of the bags are not mentioned, let's assume Bag A contains 1 pound of carrots and Bag B contains 2 pounds.

Price of Bag A: $x
Price of Bag B: $y

To compare the prices per pound, we divide the price of each bag by their respective weights:

Price per pound of Bag A = $x/1 lb = $x/lb
Price per pound of Bag B = $y/2 lbs = $y/2lb

Since we have $10 to spend, we can form an equation to find the relation between prices:

x + y = 10

Now let's evaluate the prices per pound to determine the better deal. However, without specific prices, the comparison cannot be made.