Mr. Ramirez had $600. He saved 3/5 and spent 3/8 of the remainder

$450

Step-by-step explanation:

Given function:

To solve:

Subtract the two terms:

Subtract the first value by 360:

Find 3/8 of 240 and then subtract it:

Combine the terms:

Therefore, Mr.Raminrez now have a total of $450..

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