Final answer:
The larger sand dollar, which burrows 1 1/4 centimeters into the sand, is burrowed farther than the small sand dollar, which burrows 1/2 centimeter.
Step-by-step explanation:
To determine which sand dollar is burrowed farther into the sand, we need to compare the depths of their burrows. The small sand dollar burrows 1/2 centimeter into the sand, while the larger sand dollar burrows 1 1/4 centimeters into the sand.
We can compare these two depths by ensuring they are in the same units. Here, they are both in centimeters, so we can directly compare the fractions. Since 1/2 is equivalent to 0.5 and 1 1/4 is equivalent to 1.25, we can clearly see that 1.25 is greater than 0.5. Therefore, the larger sand dollar is burrowed farther into the sand than the small sand dollar.