(4f-5+2g)-(6g+4)
change to standard form

4f-4g-9

Step-by-step explanation:

first I did i put 4f cuz u can't do anything to it so then I subtract 2g-6g you will get -4g and then add -5 +4=-9

hope this helps

Assuming that each marble can be picked with equal probability, we notice that there is a total of

marbles, of which 2 are red.

So, the probability of picking a red marble is

In fact, as in any other case of (finite) equidistribution, we used the formula