How could i write the fractions 8/100 3/5 and 7/10 from least to greatest

List the elements of the set in roster notation. (enter empty or ∅ for the empty set.) {x | x is a letter in the word hippopotamus}

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y