Ateam of ecologists is tracking mountain lions throughout california. they count 4543 mountain lions in the entire state. the area of california is 423,970 kmsquared2. what is the population density of mountain lions per 250 kmsquared2 in california?

For this case we can make the following rule of three:
 4543 > 423970 km ^ 2
 x > 250 km ^ 2
 Clearing x we have:
 x = (250/423970) * (4543)
 x = 2.678845201
 
 the population density of mountain lions per 250 kmsquared2 in California is:
 x = 2.678845201
nearest whole numberx = 3

I'm just guessing, but my answer would c. 0 to 300.

Your answer should be 1/3. i hope i could ! good luck : )