piano123

This problem has already been answered: https://web2.0calc.com/questions/1-there-are-four-positive-integers-a-b-c-and-d-such

This question has been answered here: https://web2.0calc.com/questions/please-help_29192

This question has been answered here: https://web2.0calc.com/questions/help-plz_10265

The answer is here: https://artofproblemsolving.com/wiki/index.php/2006_AMC_8_Problems/Problem_15

This problem has already been answered: https://web2.0calc.com/questions/sorry-for-re-posting-but-i-really-need-an-answer#r2

This problem has already been answered here: https://web2.0calc.com/questions/area-of-a-triangle_10

This problem has already been solved here: https://web2.0calc.com/questions/help_80189 

Thank you!! :)

Oh. Sorry about that, 3 people.

THANK YOU SO MUCH! I really appreciate it! :)

Ok, thanks :D

Also, please include equations not just the answer. Thx :)