Final answer:
To feed a giant panda for a week, a zookeeper can buy weights of bamboo that are 300 pounds or more.
Step-by-step explanation:
To determine which weights of bamboo a zookeeper can buy to feed a giant panda for a week, we need to consider that the giant panda eats about 300 pounds of bamboo every week.
This means that the zookeeper should buy bamboo that weighs at least 300 pounds or more.
However, the zookeeper can also buy weights of bamboo that exceed 300 pounds because the giant panda may not eat the entire amount.
So, the weights of bamboo that a zookeeper can buy to feed a giant panda for a week are 300 pounds or more.