A bouncy house costs $75 to rent for every 2 hours plus 8.25%. what is the total cost for 6 hours?

  $487.13

Step-by-step explanation:

The base cost is ...

  ($75/h)(6 h) = $450

The 8.25% surcharge adds ...

  0.825×$450 = $37.125 ≈ $37.13

Then the total cost is ...

  $450 +37.13 = $487.13

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

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