Using the fundamental counting theorem, we have that:
- 648 different area codes are possible with this rule.
- There are 6,480,000,000 possible 10-digit phone numbers.
- The amount of possible phone numbers is greater than 400,000,000, thus, there are enough possible phone numbers.
The fundamental counting principle states that if there are p ways to do a thing, and q ways to do another thing, and these two things are independent, there are ways to do both things.
For the area code:
- 8 options for the first digit.
- 9 options for the second and third.
Thus:

648 different area codes are possible with this rule.
For the number of 10-digit phone numbers:
- 7 digits, each with 10 options.
- 648 different area codes.
Then

There are 6,480,000,000 possible 10-digit phone numbers.
The amount of possible phone numbers is greater than 400,000,000, thus, there are enough possible phone numbers.
A similar problem is given at brainly.com/question/24067651
Answer:
92.119
Step-by-step explanation:
0.84+91.279=92.119
Hope this helps!
The correct answer to this question is letter "<span> C. There may be other hitters in the 320s, but they didn't make the top 30." </span>his distribution of data shows lots of lifetime averages in the middle classes, but tails off sharply at both the upper and lower ends. The statement that best explains the fact that there are very few averages in the lowest class is that t<span>here may be other hitters in the 320s, but they didn't make the top 30.</span>
Answer:
Asiatic Registration Bill of 1906.
Step-by-step explanation:
The first passive resistance campaign was started in Johannesburg in 1907 with, and for, the wealthy South African Indian merchants whom he had so long represented.’ Gandhi’s first passive resistance campaign began as a protest against the Asiatic Registration Bill of 1906.