Answer:
Stack.
Explanation:
Topological sort requires a bit of addition to DFS algorithm.So DFS can be done by two ways that are either you can use recursion or you can use Stack data structure to implement DFS.
Since recursion uses stack memory when it makes recursive calls and if you want to do it iteratively you can stack data structure.
 
        
             
        
        
        
Answer:
C 
Explanation:
Well, in your inquiry it says 
"A presentation software that is used to organize and present pertinent information using graphics, word processing, outlining, drawing, and presentation management tools"
We know it isn't Microsoft Word, because Microsoft Word doesn't have a presentation feature. We know it isn't Excel because Excel is only meant for spreadsheet and analytics data. 
However, on PowerPoint all these points make sense, PowerPoint is a tool that Microsoft created for the capabilities such as to present information, you can also put information inside of graphics as well, you can also draw, and outline too.
 
        
             
        
        
        
Answer:
Once more that one person answer, you will get an option next to the heart and the star that would look like a crown 
Explanation:
That is how you do it. 
 
        
             
        
        
        
Answer:
SUM, AVERAGE, MAX,MIN
Explanation:
Sum: The SUM function is categorized under Excel Math and Trigonometry functions. ... The function will sum up cells that are supplied as multiple arguments. It is the most popular and widely used function in Excel. SUM helps users perform a quick summation of specified cells in MS Excel.
Average: The AVERAGE function in Excel does exactly what you think it should. It computes the mathematical average of a set of numbers. In other words, it adds up a set of numbers and then divides the sum by how many numbers are being averaged.
Max: he MAX function will count numbers but ignore empty cells, text, the logical values TRUE and FALSE, and text values. In financial analysis, MAX can be useful in calculating the highest score, the fastest time, the highest expense or revenue amount, etc.
Min: will return the minimum value in a given list of arguments. From a given set of numeric values, it will return the smallest value. Unlike the MINA function, the MIN function ignores numbers, text, and logical values TRUE and FALSE and text values. In financial modeling.
 
        
             
        
        
        
Probably providing a common calendar