Answer:
P= 150
Substitute P with 150 and you will get 30
Answer:
Option A
Step-by-step explanation:

we start with 12 red marbles out of 25 marbles, that's the probability for the first.
in the second step we have one red marble less, wich also means one marble less overall
and so on


can be reduced by 1320 (step by step) to

Addition/Subtraction and. Multiplication/ Division ... So checking one operation with its opposite is a good way to help verify your answer.
h= 0
Substitute 3 in the equation
h = {2(3) + 1 }/3-3
h = 7/0
h = 0
Therefore h is 0