Use the distributive property to expand the expression. −(3a3 − 4b2) + (12x − 9y − 5) a) −3a3 + 4b2 + 12x − 9y − 5
b) −3a3 + 4b2 − 12x − 9y − 5
c) −3a3 − 4b2 + 12x − 9y − 5
d) −3a3 − 4b2 − 12x − 9y − 5

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

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1