If -1 < x < 2, then 2x + 4
A. a=-1, b=2
B. a=2, b=6
C. a=0, b=8
D. a=-6, b=0

12*c

step-by-step explanation:

d

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

80 the answer is 80

step-by-step explanation: