Hiroto’s texting plan costs $20 per month, plus $0.05 per text message that is sent or received. Emilia’s plan costs $10 per mon
2 answers:
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A) 672750
B) 68250
C) 2960100
Explanation
A) We have 26 letters from which to choose 4, and 10 digits from which to choose 2:
B) We have 26 letters from which to choose 2, and 10 digits from which to choose 4:
C) We have 26 letters from which to choose 5, and 10 digits from which to choose 2:
B) 68250
C) 2960100
Explanation
A) We have 26 letters from which to choose 4, and 10 digits from which to choose 2:
B) We have 26 letters from which to choose 2, and 10 digits from which to choose 4:
C) We have 26 letters from which to choose 5, and 10 digits from which to choose 2: