C D E A store sells almonds for $7 per pound, cashews for $10 per pound, and walnuts for $12 per pound. A customer buys 12
pounds of mixed nuts consisting of almonds, cashews, and walnuts for $118. The customer buys 2 more pounds of
walnuts than cashews. The matrix below represents this situation.
0
- 1
1
2
7
10
12
118
1
1
1
12
If the reduced row echelon form of this matrix represents the amount of each type of nut the customer buys, which
statement is a possible interpretation of the results?