Answer:
Step-by-step explanation:she asked you that because she smelled something and she whispered it so she wouldnt embarrass you
so she would not embarras you
-5xa^2-7a^3+7a^2+4
Step-by-step explanation:
3 is the mode
49b² - 81 = (7b)² - 9 ²
by identity : 49b² - 81 = (7b - 9)( 7b + 9)