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

Read also:

• How can targeted individuals protect themselves from organized stalking? Have you discovered practical strategies?
• What are mean nicknames to call my sister? She is always so mean to me.
• Has a cop ever said something to you which was completely unexpected?
• A Mistake Led to the Discovery of an Underwater Island Full of Rare Earth Elements - The Daily Galaxy
• Could humans be selectively bred, like dogs, to create 2 subspecies that can no longer have offspring? Do I not understand selective breeding properly? Im not worried about the moral implications, just the science please.
• Is it okay or problematic to be both Black and gay in society in the 21st century?
• Why are Americans obese? Is it the food or is it the psychology?
• Do you think the constitution and laws should be taught in school?
• Why is every human messed up in some way?
• Did you know God exists? 900+ answers later and no atheist has yet to be successful. Day 8 of asking Atheists to provide a SINGLE argument that demonstrates a cause for the beginning of the universe while avoiding the problem of infinite regression.
• What causes tension between liberals and conservatives? Is it purely based on ideological differences or are there other factors at play?
• Advice for trying GLP-1 drugs for weight loss from a doctor who's been there - NPR
• What can you do if someone makes a false accusation against you?
• Why does Africa have all mineral resources but she is suffering economically?
• Why is it after eating almonds when I’m occupied, I don’t feel mild itch, but as soon as I have nothing to do, I feel mildly itchy?