What particle is needed to balance this equation? *
23A1 → He + ?+2jNa

Abcd is a parallelogram find the valuse of x

Jorge planted flowers in his garden he planted one row of 12 tulips and one row of 36 daisies george's friend kylie has a garden with 75 flowers in it kylie's garden only contains tulips and daisies. is it possible for kylie‘s garden she have the same ratio of tulips to daisies as george's garden?

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180