What is the sum of X+XX+XXX+XXXX?

Read also:

• Julie Bowen Thought She’d Be Replaced By Sydney Sweeney in ‘Happy Gilmore 2’ - The Hollywood Reporter
• Who are the most controversial members of BTS besides Jimin?
• How short is too short for a skirt?
• From an axiology/value theory point of view, how can one say that a diverse society is better than a uniform one, especially given the negative effects of diversity (racism, sectarian conflict, problems arising from extreme cultural relativism)?
• Only 1,280 Survived: The Near-Extinction Event That Nearly Wiped Out Humanity 1 Million Years Ago - The Daily Galaxy
• Bernadette Peters Responds to Cole Escola's Tony Awards Look With Her Full Chest - Playbill
• Why do some people believe that Homelander would be no match for Superman or Thor?
• A new type of X-point radiator that prevents tokamaks from overheating - Phys.org
• AI Finally Cracks Decades-Long Mars Mystery That Has Baffled Scientists - The Daily Galaxy
• Australia vs South Africa: Proteas win World Test Championship final at Lord's - BBC
• How do I study with focus and concentration and avoid distractions and procrastination?
• Howard Stern explains what friend Billy Joel wants everyone to know about his brain disorder diagnosis - New York Post
• Why do liberals think same-sex marriage is alright? The Bible makes it very clear that it's not alright to be gay, why can't liberals understand that?
• Scientists have just discovered an ocean at the Earth's core, challenging our understanding of the universe. - Farmingdale Observer
• Humans have evolved and become hairless and odor free. How do other races learn about evolution since evolution does not apply to them?