Quickly !
solve for a.
a+(−5)=−12
what is the answer?
a. a=−17
b. a=−7
c. a = 7
d. a = 17

a+(−5)=−12

a−5=−12

a = -12 + 5

a = -7

answer is b. a=−7

y > 1/3x

y < = -x + 4

hope this : )

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