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?

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.