Answer:
first you'I study and just a question from this app
The given expression is:

There are 3 terms in this expressions:
1)

2)

3) 2
The coefficient of

is 3.
The coefficient of

is -7.
The constant term is 2.
Answer: (-3, -21)
I'm not sure if that's what you wanted, sorry.
Answer:
c.
Step-by-step explanation:
because you take 12÷4 and the outcome turns out to be 3
Answer:
Im pretty sure what you have to do is add up the angles and subtract 360.
Step-by-step explanation:
Im not 100% though. good luck