What is the value of a?

a–2=3+6a

3

a = 17 / 11

Step-by-step explanation:

or, a - 2 = 3(3 + 6a)

or, a - 2 = 9 + 18a

or, - 2 - 9 = 18a - a

or, -11 = 17a

or, a = 17 / 11

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

it would not be increasing by nothing that i can see probably by 25 percent that is all i can sat\y for now if i have any thing else to say i will edit this.

step-by-step explanation: