40 is the correct answer. Hope this helps :)
Answer: D
Step-by-step explanation:
The expresion of distance is
Estimate :
2 7/8 ounces ≈ 3 ounces
3 2/3 ounces ≈ 4 ounces
1 gallon needs about 3 ounces of chemical
4 gallons needs about 3 x 4 = 12 ounces of chemical
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Actual:
1 gallon = 2 7/8 ounces of chemical
3 2/3 gallon = 2 7/8 x 3 2/3 ounces of chemical.
[Assuming you can use the calculator to compute]
3 2/3 gallon = 10 13/24 ounces of chemical.