In your notebook, set up the following subtraction in a vertical format and select the correct answer. find 2 p2 + 3 p - 4 less - 2 p2 - 3 p + 4. 4 p2 + 6 p + 8 4 p2 - 6 p - 8 4 p2 + 6 p - 8 0

 4p^2  +6p -8  

Step-by-step explanation:

2 p^2 + 3 p - 4 less (-2 p^2 - 3 p + 4)

2 p^2 + 3 p - 4 - (-2 p^2 - 3 p + 4)

Put in vertical format

   2 p^2 + 3 p - 4

- (-2 p^2 - 3 p + 4)

Distribute the minus sign

   2 p^2 + 3 p - 4

 +2 p^2 + 3 p - 4)

   4p^2  +6p -8  

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54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m