The total area can be found with L x W. 85 x 50 is 4,250.
32% of the area is flowers. So find 32% of 4,250.. which is 1,360. (4,250 x .32 = 1,360)
That’s the flowers. But we want the grass, which is everything else. So subtract 4,250 by 1,360.... 2,890 is the final answer.
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Another way to solve this is by immediately seeing which percent is grass. If 32% if flowers, that must mean 68% is grass.
68% of 4,250 is 2,890.