Which description is paired with its correct expression? seven less than the quotient of two and a number squared, increased by six; 7-2/n^2+6

nine times the difference of a number cubed and three; 9(n^3-3)

eight more than the quotient of a number squared and four, decreased by seven; 8+4/n^2-7

twice the difference of a number cubed and eight; 2n^3-8

The four students in the table below each recorded the time and distance traveled while exercising. exercising distance (miles) time (minutes) gia 2 30 harris 5 50 ian 3 40 jackson 4 80 which list ranks the students from fastest walker to slowest walker? jackson, gia, ian, harris harris, jackson, ian, gia harris, ian, gia, jackson jackson, harris, ian, gia