
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Four friends, Art, Belle, Calvin, and Dana, each bake cookies using the same thickness and amount of dough. Their cookies differ in shapes as described:
- Art's cookies are rectangles, 4 cm in length and 3 cm in width, and he makes 10 cookies.
- Belle's cookies are triangles, each with a base of 6 cm and a height of 2 cm, and she makes 20 cookies.
- Calvin's cookies are circles with a radius of 2 cm, and he makes 15 cookies.
- Dana’s cookies are squares, each side 3 cm, and she makes X cookies.

If Dana wants to earn $\$18$ by selling all her cookies at 90 cents each, how many cookies must she make?
A) 12
B) 13
C) 14
D) 15
E) 16

Present the answer in LaTex format: \boxed{Your answer}
user