Answer all three questions

Convert 4.5kcal to its value in calories. Express your answer to two significant figures and include the appropriate units. Use abbreviations for the units. Convert 2930cal to its value in kilojoules. Express your answer to three significant figures and include the appropriate units. Use abbreviations for the units. Convert 1.10kcal to its value in joules. Express your answer to three significant figures and include the appropriate units. Use abbreviations for the units