Question

this passage describes tusks in african elephants.
many african elephants have large tusks, which they use for digging and fighting.
however, elephant tusks are the main source for a valuable material called ivory. illegal hunters called poachers may kill elephants to get tusks for ivory. these poachers are more likely to kill elephants with tusks than elephants without tusks.
an african elephant with tusks
the table below describes a possible population of african elephants at the start of a period of time and at the end of that period. the table shows the tusks trait in the population at each point in time.
complete the table. write the exact answers as whole numbers or decimals.
data about a population of african elephants

point in time	number with tusks	number without tusks	percentage with tusks	percentage without tusks
end	21	729	%	%

Explanation:

Step1: Calculate total start population

$51 + 74 = 125$

Step2: Find start % with tusks

$\frac{51}{125} \times 100 = 40.8\%$

Step3: Find start % without tusks

$\frac{74}{125} \times 100 = 59.2\%$

Step4: Calculate total end population

$21 + 729 = 750$

Step5: Find end % with tusks

$\frac{21}{750} \times 100 = 2.8\%$

Step6: Find end % without tusks

$\frac{729}{750} \times 100 = 97.2\%$

Answer:

Point in time	Number with tusks	Number without tusks	Percentage with tusks	Percentage without tusks
End	21	729	2.8%	97.2%