Q: A monitor is 21 inches by 12 inches. There are 100 dots per inch. How many total pixels are there?
A: 2520000
Explain how we arrive at this answer:
Explanation: The display is 21 * 100 = 2100 pixels across. The display is 12 * 100 = 1200 pixels tall. That means there is a total of 2100 * 1200 = 2,520,000 pixels.