6. 68. yea thats all i know
Answer:
28
Step-by-step explanation:
We know that ,
- n C r = n! / ( n - r)! r!
Answer:
18x + 15
Step-by-step explanation:
Combine like terms & simplify the given expression:
9x - 4 + 4x + 5x + 19
(9x + 4x + 5x) - 4 + 19
(13x + 5x) + (19 - 4)
(18x) + 15
18x + 15 is your answer.
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