To find the sale price, calculate 25% of $200, which is $50, and subtract that from the original price. So, $200 - $50 = $150.
To calculate the percentage increase, use the formula: [(New Value - Old Value) / Old Value] × 100. Here, [(1200 - 800) / 800] × 100 = 50% increase.
Simple interest is calculated using the formula: Principal × Rate × Time. Here, $1,000 × 0.05 × 1 = $50 in interest for one year.
There are 1,000 milliliters in a liter. Therefore, 2.5 liters × 1,000 = 2,500 milliliters.
Multiplying 15 by 8 equals 120. This is a basic arithmetic operation involving multiplication.
