The amount of scalloped potatoes and ham you'll need to serve 100 people can vary based on factors such as portion size and other dishes you're serving. However, I can provide you with a rough estimate to help you plan:

A typical serving size of scalloped potatoes and ham at an event like a baby shower is around 4 to 6 ounces per person. Since you're serving other dishes as well, I'll provide an estimate based on a 5-ounce serving size per person.

• For 100 people at 5 ounces per person, you would need: 5 oz/person * 100 people = 500 oz of scalloped potatoes and ham.

Now, considering that potatoes are a key component of scalloped potatoes and ham, and potatoes weigh roughly 6-8 ounces per medium-sized potato, let's assume an average of 7 ounces per potato. You can then calculate the number of potatoes needed: 500 oz / 7 oz/potato ≈ 71.43 potatoes.

Since you can't really buy a fraction of a potato, you might want to round up to ensure you have enough. So, you might need around 72 potatoes. Remember, this estimate is based on rough averages, so it's always a good idea to account for a little extra to ensure you have enough food for everyone. Additionally, consider the size of the potatoes you'll be using, the sizes of the portions you're aiming for, and any other sides or dishes you'll be serving.