Someone please help fast! I’m taking the test rn and I don’t understand this

Suppose you have 9 coins and one of them is heavier than others. other 8 coins weight equally. you are also given a balance. develop and algorithm to determine the heavy coin using only two measurements with the of the balance. clearly write your algorithm in the form of a pseudocode using the similar notation that we have used in the class to represent sorting algorithms

To maintain clarity and focus lighting might be needed

List at least one thing to check for when you're checking the clarity and professionalism of a document.