A researcher was interested in the effectiveness of a given learning program geared toward high school juniors. 100 high school juniors from five different schools were used
for the study. What is the sample?
5 different high
school
high school juniors
100 juniors selected
from five different
schools
high school
students

i got 142 as my answer

step-by-step explanation:

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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

75%

step-by-step explanation: