Question

Ilus

Answer 1

Answer:

        $\bold{B.\quad \ y^3-\dfrac R2}$

Step-by-step explanation:

"half of R" it is:   $\dfrac R2$

"y cubed" it is:   $y^3$

Therefore, half of R subtracted from y cubed is:  $y^3-\dfrac R2$