X+5+2x-2+90=180. combine like terms and solve like a normal algebra problem to find x. if you need to find the answer for a certain angle, plug in the value you got for x into one of the angle equations
Answer:
The first six numbers are 
Step-by-step explanation:
First term is 
The term to term rule is 'square and subtract
'
Second term
Third term
Fourth term
Fifth term
Sixth term
The first six numbers are 
Answer:
y = 2x + 9
Step-by-step explanation:
The y-intercept: 9
Slope: 2x