Someone answer these please!

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friend’s parents for your ! ❤️