In a different plan for area codes, the first digit could be any number from 4 through 7, the second digit was either 2, 3, or
4, and the third digit could be any number except 0 . With this plan, how many different area codes are possible?
1 answer:
1st digit:: 3ways
2nd digit:: 3ways
3rd digit:: 9 ways
3x3x9=81
So the answer is 81 different possible area codes.
You might be interested in
Answer:
x = - 4
8 = 2x + 16
2x = - 8
x = - 4
Answer:
C.
Step-by-step explanation:
Hope this Helps you !
Answer: It should be the first one again.
12 hours worth $87
1 hour would be $87/12 = $7.25
9 hours worth $65.25
1 hour would be $65.25/9 = $7.25
The constant of proportionality is $7.25 per hour.
135 is the answer. please give me brainliest
