Divide 64 and 677 into a fraction

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?

Systems of linear equation problem. with the wind a cyclist rode 24 miles in three hours. she returned in twelve hours against the wind. find the rate of the cyclist without wind and the rate of the wind.

V=x^3+13x^2+34x-48 find an expression for the missing dimension