Answer:
(a) 350
(b) 175
(c) 21
(d) 196
Step-by-step explanation:
Number of females = 7
Number of males = 5
Total ways of selecting r items from n items is

(a)
Total ways of selecting 3 females and 2 males.




(b)
Total ways of selecting 4 females and 1 male.



(c)
Total ways of selecting 5 females.



(d)
Total ways of selecting at least 4 females.
Total ways = 4 females + 5 females


-3 > -5
-5 < -3
hope it helps, sorry if I'm wrong
Answer:
Go to desmos and it will answer literally all of your graphing questions. Just type in desmos graphing calculator.
Step-by-step explanation:
It's division.
Hope I helped!