You should definitely talk to your teacher about it, as well as check out Khan Academy online for detailed explanations and videos of the subject you're working on.
Answer:
29
Step-by-step explanation:
gekbbziwvjavvx
jddkhbd
iqbsnns
ekdhsbw
snsosnn
nsjsosn
Answer:
Step-by-step explanation:
For
, so
We apply the quadratic equation formula:
, where
. so;
, but
We have that:

Answer: A
Steps:
12(8+x)=126
96+ 8x=126
-96 -96
8x= 30
x=3.75