A CD store is having a sale. All CDs are 25% off sticker price. Estimate the amount you would save when buying 6 CDs at $9.99 ea
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Let <span>simplify the equations 
and 
:
</span>
<span>1)
</span>
<span>and
</span>
<span>2)
.
</span>
<span>Equate the coefficients:
</span><span>
</span><span>
.</span>
Then
and mnp=24.
<span />
</span>
<span>1)
</span>
<span>and
</span>
<span>2)
</span>
<span>Equate the coefficients:
</span><span>
</span><span>
Then
<span />