find the measurement K explain in detail how do you solved for measurement k or upload a picture of your detailed work

m<K = 63

Step-by-step explanation:

Exterior angle thm:

6x - 9 + 4x + 7 = 118

10x - 2 = 118

10x = 118 + 2

10x = 120

x = 12

m<K:

6x - 9

6(12) - 9

72 - 9

63

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