A train moving at a velocity of 15 m/s is accelerated to 24 m/s over a 12 second period

75m/s/s

Explanation:

24m/s - 15m/s / 12sec = 9m/s / 12sec = 75m/s/s

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Explanation:

A train moving at a velocity of 15 m/s is accelerated to 24 m/s over a 12 second period ... 24m/s - 15m/s / 12sec = 9m/s / 12sec = 75m/s/s.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

c. 75.7

i think that is the right