Please Help. I dont know where to start

The data represents the semester exam scores of 8 students in a math course. {51,91,46,30,36,50,73,80} what is the five-number summary?

Aresearch study is done to find the average age of all u. s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample

Which is the standard form for this number? (2 x 10) + (5 x 1) + (8 x 1 10,000 )