If something was sold for $270 after it was reduced by 1/3 of the original price, what was the original price

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.