A Quick Math Test For Your Brain!

Explanation
The expression (-11) - (11) can be simplified by subtracting 11 from -11. When subtracting a positive number from a negative number, we add the absolute values and keep the sign of the larger number. In this case, the absolute value of -11 is 11, and the absolute value of 11 is also 11. Therefore, adding 11 and 11 gives us 22, and since the larger number is negative, the result is -22.

Explanation
The correct answer is 200 because when you multiply 25 by 8, you get the product of 200.

Explanation
In Kelly's e-Pal club, there are 11 members. Each member sent an email to every other member in the club. To calculate the number of emails sent, we can use the formula n * (n - 1), where n is the number of members. In this case, 11 * (11 - 1) = 110 emails were sent out.

Explanation
To determine how much money Julie's parents give her weekly, we can calculate her weekly expenses and then subtract those expenses from her weekly allowance.

Weekly Expenses:
- $2 at the movies
- $6 at the mall
- $14 at the zoo
- $8 for lunch every day (7 days a week)

Now, let's calculate the total weekly expenses:

Weekly Expenses = $2 (movies) + $6 (mall) + $14 (zoo) + $8 per day for lunch x 7 days = $2 + $6 + $14 + $56 = $78

To find Julie's weekly allowance, we need to add the weekly expenses to her total weekly spending:

Total Weekly Spending = Total Weekly Expenses

Weekly Allowance = Total Weekly Spending

So, Julie's parents give her a weekly allowance of $78.

Explanation
Ken makes more money in a week compared to Carl because he works more hours. Ken works 8 hours a week and makes $6 an hour, so his total earnings per week would be 8 x $6 = $48. On the other hand, Carl works 4 hours a week and makes $8 an hour, so his total earnings per week would be 4 x $8 = $32. Therefore, Ken makes more money in a week than Carl.

Explanation
12 times 15 is equal to 180. This can be calculated by multiplying 12 by 15, which gives us the result of 180.

Explanation
To find Mark's age in 2025, you can subtract his birth year from 2025:

2025 (current year) - 1985 (birth year) = 40

Mark will be 40 years old in 2025.

Explanation
The given question asks for the equivalent value of 1 foot. Among the options provided, the correct answer is 12 inches. This is because there are 12 inches in 1 foot. Therefore, 1 foot is equal to 12 inches.

Explanation
The given multiplication problem is 8,000,000,005 multiplied by 1. When any number is multiplied by 1, the product is always equal to that number. Therefore, in this case, 8,000,000,005 multiplied by 1 is equal to 8,000,000,005.