mr. and ms. smith went to a diner for breakfast. ms smith ordered 2 eggs and 2 pieces of bacon for $3.90. mr smith ordered 3 eggs and 4 pieces of bacon for $7.15. write a system of linear equations and find the cost for each egg and piece of bacon. show work and explain

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 first one

step-by-step explanation:

just id the test.

no idea

step-by-step explanation:

the first option is the answer.