The capacity of a small children's swimming pool is 125 gallons of water. There are currently 35 gallons of water in the pool. Write and solve an inequality to represent the maximum amount of water that can still be added to the pool.

a) Formulate an inequality to represent the situation.
b) Solve the inequality to find the maximum amount of water that can be added.
c) Explain the significance of the inequality in the con of the swimming pool.
d) Provide the final solution and interpretation for the maximum amount of water.