What property is this? 2(xy) = (2x)(y)
a.
Commutative Property of Multiplication
b.
Associative Property of Multiplication
c.
Multiplicative Property of Zero
d.
Multiplicative Identity

a² + b²= c²

24² + 7² = c²

c= 25

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