You need this key result: in any polygon, the sum of the interior angles is
where 
is the number of sides of the polygon.
Your polygon has seven sides, and the measures of all angles are given. So, we can write
Again, we've simply written that the sum of all interior angles is the number of sides, minus two, times 180.
We can simplify both sides: we sum like terms on the left hand side, and we easily compute the right hand side:
and we can solve this equation for 
by dividing both sides by 30:
Finally, the required angles is 
Answer:
Therefore the final price of the table coffee which is on sale by 20% with a sales tax of 7.5% is $98.9
Step-by-step explanation:
it is $98.9
Answer:
147
Step-by-step explanation:
add the 2 sides together 19+14=33 then take 33 and subtract from 180. bc thats the rule btw. So 180-33= 147 hope this helps :))
185 in because because becuase i searches it up up yp up up up up up up
36/40 would be close to 1
