Answer:
84
Step-by-step explanation:
they are all equal sides so what you'd do is 28+28+28= 84
If you're looking for the trend name, I would say Strong Positive, or (a).
14n=-126
/14 /14 divide by 14 on both sides of the
equation
n=-9
You need PEMDAS
do 3·6 and then 12/6
when you subtract the product and quoetient you get 16 for the answer