Answer:
[tex] z = \dfrac{3R}{2xy^2} [/tex]
Step-by-step explanation:
[tex] R = \dfrac{2}{3}xy^2z [/tex]
[tex] \dfrac{2}{3}xy^2z = R [/tex]
[tex] \dfrac{3}{2xy^2} \times \dfrac{2}{3}xy^2z = \dfrac{3}{2xy^2} \times R [/tex]
[tex] z = \dfrac{3R}{2xy^2} [/tex]
