What does the 6/8 simplify to

Mary had at least an 80% on her test write an inequality to represent this situation

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane