(a/b)(c/d)=(ac/bd)
Therefore:
(5/4).(2/5)=(5*2)/(4*5)=10/20=1/2
(3/8).(-1/2)=(3*(-1)) /(8*2)=-3/16
(2/5)(5/2)=(2*5)/(5*2)=10/10)=1
(1/2)(1/3)=1/6
(-1/4)(-2/3)=[(-1)*(-2)] / (4*3)=2/12=1/6
No of ways = 9! = 362880
The fourth option is correct.
Hope it helped!
Answer:
Top right answer
Step-by-step explanation:
He added the -x to 4x when he should have subtracted.
3/8*7/6
21/48 is the answer