If a system of linear equations has the unique solution (2, -3), then its graph consists of what?
parallel lines
lines that intersect at a single point
identical lines
a y-intercept at -3

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.

t hope this

:

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63