Respuesta :

wegnerkolmp2741o

Answer:

160

Step-by-step explanation:

12r + (s-t)^2

Let  r = 5, s = -3, and t = 7.

12 * 5  + ( -3 -7) ^2

PEMDAS says parentheses first

12 * 5  + ( -10) ^2

Then exponents

12 * 5  + 100

Multiply and divide from left to right

60 +100

Add and subtract from left to right

160

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