255 kJ of energy is required to raise the temperature of sand from 16.6ºC to 55.4ºC. What is the mass of sand in kg? Express your answer with the correct number of significant digits. Science, I cant change it from health :(

for me i would

1.make a schedule

2. action plan

3. break up into simpler tasks

4.   prioritize tasks

5. delegate work

hope that

if any question leave comment

the answer for the 1st question is kayaking.

the answer for the 2nd question is communication skills.

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