Four friends are sharing of a loaf of bread. What portion of the whole loaf of bread will each friend get?

Each friend will get 1/4 or a quarter of the whole loaf of bread.

Paula has 4 bananas. She wants to divide each of them into sections. How many 's are there in 4 bananas?

It is not clear how many sections Paula wants to divide each banana into, so it is impossible to answer the question. Please provide more information.

Paula has 4 bananas. She wants to divide each of them into 1/8 sections. How many 1/8's are there in 4 bananas?

If Paula divides each of her 4 bananas into 1/8 sections, she will have a total of 32 sections (4 bananas × 8 sections per banana).

Brad bought a -pound bag of beans. He divided all the beans into two equal-sized piles. How much did each of the piles weigh?

Since Brad bought a -pound bag of beans and divided them into two equal-sized piles, each pile would weigh 1/2 of the total weight of the bag of beans. However, since the weight of the bag of beans is not given, it is impossible to determine how much each pile weighs.