6.3, etc.). Self-grade your answers by clicking on the correct "Grade" buttons. After completing the activity record answers in the table below for grading purposes. [9 pts total, 1 pt each] If the half-life is 5,730 years, determine the age of the sample. (Enter all values wi commas- example 5,678 would be entered as 5678; calculate all values to the nearest whole number) Sample ND No/No Half-lives elapsed Age in years 1 1472 2 8426 3 12144 Np 736 918 528 [1 pt] [1 pt] [1 pt] [1 pt] [1 pt] [1 pt] [1 pt] [1 pt] [1 pt]