Dos números que
tengan una diferencia
de 8.

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

7x+8y=-18, 4x-9y=-3 solve the system of equations

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33