MC, MR, and M+ are memory functions found on many calculators. MC stands for "Memory Clear" and is used to clear the calculator's memory of any stored values. MR stands for "Memory Recall" and is used to recall the value that is currently stored in the calculator's memory. M+ stands for "Memory Plus" and is used to add the current displayed value to the value that is already stored in the calculator's memory. For example, if you want to store the value 10 in the calculator's memory, you can press the "M+" button after entering the value. Then, if you want to add 5 to this value, you can enter 5 and press the "M+" button again, and the calculator will add 5 to the value stored in memory, giving a result of 15. If you want to recall the value stored in memory, you can press the "MR" button. If you want to clear the memory, you can press the "MC" button.
World Day of Social Justice is celebrated annually on February 20th to promote social justice, equality, and human rights for all. This day is an opportunity for individuals and organizations to raise awareness about social injustices and advocate for positive change in their communities and around the world. The United Nations General Assembly established World Day of Social Justice in 2007 to promote efforts towards poverty eradication, full employment, and social integration. The UN recognizes social justice as a key factor in achieving sustainable development and ending poverty, inequality, and exclusion. Social justice is a fundamental human right that ensures fair and equitable access to economic, political, and social opportunities, resources, and benefits for all individuals and groups. This includes access to education, healthcare, employment, and basic human needs such as food, water, and housing. Social justice also entails protecting the rights of marginalized and disadvant