Answer:
75%
Step-by-step explanation:
The <em>number </em>increase is 9. 9 is what percent of 12? 9 is 75% of 12
2/13
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Distribute
2 × 2f + 2 × 2
Simplify 2 × 2f to 4f
4f + 2 × 2
Simplify 2 × 2 to 4
<u>4f + 4</u>