In a triangle, the total angle is 180 degrees. A straight line is always 180 degrees. With this in mind, the following can be obtained:

These are simultaneous equations.

Answer:
1. The input is f
2. The input is g
3. The input is h
Step-by-step explanation:
The value inside the bracket of the function is the input given to the function.
1. g(f) = 2f
The input is f
2. h(g) = -4+g
The input is g
3. f(h) = h - 7
The input is h
Answer:
A
Step-by-step explanation:



This option works
Answer:
What is the question
Step-by-step explanation:
Answer:
q=(1,5) t=(-2,3)r=(3,-1)s=(0,0)
Step-by-step explanation: