Answer: The percent gain was 25%.
Step-by-step explanation:
Given, Cost price of lot = $1,200
Selling price of lot = $1,500
The percent gain = 
⇒ Percent gain =

Hence, the percent gain was 25% based on his purchase.
This question is missing information. Post the entire question.
Answer:
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Answer:
for b
Step-by-step explanation:
r and s are congruent because they're both supp to the same angle