We can approximate as the options are far apart from each other.
In 1970, the population of mallards is a little less than 11 million.
In 1988, the population of mallards is 6.5 million.
Now, \(6.5 + 4 = 10.5\)
From the given options, only D fits.
OA, DCarcass wrote:
By approximately how many million did the mallard population decrease from 1970 to 1988 ?
(A) 0.6
(B) 2.8
(C) 3.6
(D) 4.3
(E) 7.0
Kudos for the right answer and explanation
Attachment:
#greprepclub By approximately how many million did the mallard population decrease.jpg