Can someone me with this problem and show work?

The correct answer is B

Step-by-step explanation:

She starts with 29 because 29 don't have an valuable with it and she gains 12 every year, year is represented by the k. The Greater than equal to sign makes the problem can't equal anything under 120.

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