What is the answer to F(x)=-5x+7 if f(2)

F(x)= -3

Step-by-step explanation:

Plug the 2 into your X variable

-5 (2) + 7

PEMDAS to solve

Multiply

-5 * 2 = -10

Add

-10 +7 = -3

Step-by-step explanation:

f(x)= -5x+7

f(2)= -5(2)+7

f(2)= -10+7

f(2)= -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.

5/20 so 25%

step-by-step explanation: