Larry mixed 15 grams of salt with 210 grams of a 5% salt solution in water. what is the percent of salt in his new solution?

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

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100