Easy question - giving if correct - MUST USE PROPORTION TO SOLVE.

820

Explanation:
Let p be population,
if 2/20 had tags, & 82 were taged
2/20=82/p
2/20 can be simplified to 1/10 so
1/10=82/p
if 1=82 then p must equal 82x10
82x10=820

therefore a resonable estimation of the park’s population is 820

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !