C, adding the rest of this sentence because it needs to be longer
Answer:
3
Step-by-step explanation:
Answer:
900°
Step-by-step explanation:
interior angles of a polygon = (n−2)×180°, where n is number of sides
for heptagon it is: (7-2)×180°= 900°
Answer:

Step-by-step explanation:
Assuming, right and up are positive directions.
The given parent function, 
Let
be the function when the parent function is stretched by a scale factor of 2.
So, 

Let
be the function when
is translated
units right.
So, 

Again, let
be the function when
is translated 4 units up.
So, 

So, the resulting function,
.
Hence, option (1) is correct.