Answer:
b x 390 =339
Step-by-step explanation:
The answer is 12.55 I think
The answer: a) 386208
And you can see the method solution
Note: don't forget put heart ♥️ .
Answer:
seiscientos noventa y seis millones quinientos cuarenta y tres mil noventa y ocho
Answer: 21
Step-by-step explanation: This is a combination of 7 objects taken 5 at a time
nCr = n! / r! * (n - r)!
7C5 = 7! / (5! (7-5)!)
= 7! /(5! 2!)
= (7*6*5*4*3*2*1)
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5*4*3*2*1 * 2*1
Canceling
= 7*6/ (2*1)
= 21