Question 1197017
<pre>
MATTER            QUANTITY
Iron                 F
Potassium           2F
Mulch              12F
Total  ------------  15
</pre>
Question asks for {{{12F}}}.

{{{F+2F+12F=15}}}

{{{15F=15}}}

{{{F=1}}}----------pounds of Iron


{{{12F=highlight(12)}}}---------pounds of mulch