Desperately need (d) to be solved. With explanation and work out.

A swimming pool contains 2500 m³ of water with a density of 1000 kg/m³ at
10° C.The water in the pool is heated to 20 °C and expands by 5.25 m³.

a.Calculate the mass of the water in the swimming pool at 10 °C.

b.Use the particle model to explain why the water expands.

c.Will the density of the water increase or decrease when it is heated? Explain your answer.

d.Calculate the new density of the water after it has been heated.