Respuesta :

Hi1315

Answer:

-56

Step-by-step explanation:

Given that,

r => -7

s => 2

To solve this given expression, replace r & s with -7 & 2 respectively.

Let us solve it now.

[tex] \sf \: r {s}^{3} \\ \sf - 7 \times {2}^{3} \\ \sf- 7 \times 8 \\ - 56[/tex]