Answer:
20%
Step-by-step explanation:
Probability=5/(5+12+8)*100=5/25*100=20%
Answer:

Step-by-step explanation:
The function is given.

To find : 
The input for the function f(x) is (a + 1).
Replace x with (a + 1).

Expand brackets.

Simplifying.

Answer:
The first one is C
Step-by-step explanation:
The ramp is equal to 180
180-6 = 174