Just cross multiply basically divide
<em>Answer:</em>
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<em>C.) $6,584.91</em>
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<em>Step-by-step explanation:</em>
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<em>Amount earned in compound interest = P(1 + r)^n; </em>
<em>where P is the principal, </em>
<em>r is the rate and n is the number of periods.</em>
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<em>Amount = 3,000(1 + 14%)^6 = 3,000(1 + 0.14)^6 = 3,000(1.14)^6 = </em><u><em>$6,584.91</em></u>
<span>Cost 1 pack = x
3x + 10 = 5x
2x = 10
x = 5
1 pack cost $5
Hope this helped</span>
