Lucia's sells kale at x dollar per pound for the first 20 pounds and .8x for every subsequent pound. Amby's price is x per pound for the first 14 pounds and .9x for subsequent pounds. What is the minimum number of pounds over 15 for which Lucia's becomes an equal or better deal?	Pick one.
A) 24 B) 26 C) 25 D) 27 E) 28
For Amy's deal to be better, the cost has to be less or equal to Lucia's   Assuming 'n' is the number of pounds of kale, the equation is   20x + (n-20) (0.8x) &lt;= 14x + (n-14)(0.9x)   Resolve it:   ==&gt; 20x + 0.8nx - 16x &lt;= 14x + 0.9nx - 12.6x   ==&gt; 2.6x &lt;=0.1nx   ==&gt; 26x &lt; =nx   ==&gt; x (n-26) &gt; = 0   as x cannot be 0,   ==&gt; n - 26 &gt;=0   ==&gt; n &gt; = 26   so the minimum value is 26   '26' would be the correct answer
<result>B</result>
Lucia's sells kale at x dollar per pound for the first 20 pounds and .8x for every subsequent pound. Amby's price is x per pound for the first 14 pounds and .9x for subsequent pounds. What is the minimum number of pounds over 15 for which Lucia's becomes an equal or better deal?