I don't know what is between f(x) and g(x), so (for now) there are two posible answers:
1.

- function multiplication:

2.

- function composition:
The expression that could best describe the statement would be " 40 n + 20

260.
Answer:
B. They will all be similar
Step-by-step explanation:
You can make as many different size triangles as you like. The angles alone do not constrain the size, only the shape. The triangles you make will all be similar.
8.992254284692088 is the radius I believe
Answer:
3
Step-by-step explanation:
Coefficient: A numerical or constant quantity placed before and multiplying the variable in an algebraic expression