Explanation

The action of wearing socks and shoes commute.

Explanation

The set of integers, Z, forms a group under addition.

Explanation

Explanation

The prime numbers less than 25 are: 2, 3, 5, 7, 11, 13, 17, 19, and 23.

Let's add them up:

2 + 3 = 5

5 + 5 = 10

10 + 7 = 17

17 + 11 = 28

28 + 13 = 41

41 + 17 = 58

58 + 19 = 77

77 + 23 = 100

So, the sum of prime numbers less than 25 is: 100

Explanation

Explanation

To find the mode, we look for the number that appears most frequently in the dataset.

In the given dataset: 4, 5, 7, 4, 9, 1, 3, 0

The number 4 appears twice, while all other numbers appear only once.

Therefore, the mode of this dataset is 4.

Explanation

In the number 485.21:

• 4 is in the hundreds place
• 8 is in the tens place

Explanation

Step 1: Calculate the division

0.3/0.1 = 3

Step 2: Multiply the result by 0.3

3 × 0.3 = 0.9

Explanation

The sum of two odd integers (e.g., 3 + 5) is always an even number (e.g., 8).

That’s because odd + odd = even.

Explanation

By definition in mathematics, 0! = 1.

It helps maintain consistency in formulas like permutations and combinations.