Respuesta :

apologiabiology
st meaans s times t
s=-4
t=9
st=-4 times 9
negative times positive=negative
4 times 9=36
-4 time s9=-36
st=-36
answer is -36
Cortes33
To evaluate means to calculate the numerical value, so first substitute the value for each variable; if s =-4 & t = 9
  
st = (-4)(9) = -4 × 9 = -36
So your final answer is; -36

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