Answer:
D. $420
Explanation:
You want to know the amount that is 15% of $2800.
Quantity
To find the amount that is 15% of $2800, multiply 15% by $2800.
0.15 × $2800 = $420
Olive will save $420 each month, choice D.
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Additional comment
"%" is equivalent to "/100", so 15% = 15/100 = 0.15.
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