No clue even though I’ve finished school and college
Answer:
it is the first one I am sure of it
The answer is 3 for all of them
The expression that represents the cost of her bill last month would be 40 + 0.2t.
The forty represents the forty dollars charged each month for unlimited calling, and the 0.2t represents the amount of money charged for her text messages.
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.