D is your answer
Expand and do FOIL method (first outside inside last)
simplify and then choose right answer
A is your answer
Do the same thing
hope this helps
Answer:
the 3rd one is the graph answer
Add 2.38 and 4.89 then subtract 3 giving you 4.27
Sample space ={6y+11b+15g+3bk} = 35 elements
number of black rings=3
probability (black ring) =3/35=0.085
The answer to the question above is D. (5.7, 31.3)