If it takes 7.2 pounds of seed to plant one acre of grass, how many acres can be planted with 8.4 pounds of seed?

1 1/6 of an acre

Step-by-step explanation:

You should set up a ratio (pounds of seed over number of acres)

So 7.2/1 = 8.4/?

Then solve for ?

8.4 ÷ 7.2 = 1 1/6

1 1/6 × 1 = 1 1/6

1 1/6 acres can be planted

the answer is 62.8 cubic units

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