(3x+1) = 64
3x = 63
3x/3 = 63/3
x = 21
The correct answer is Choice B: 720.
To solve this, you have to use the Fundamental Counting Principal. You find the total number of options for each of the digits, then multiply them together.
For the first one, there are 10 options, then 9 options and finally 8 options.
10 x 9 x 8 = 720
Answer:
64
Step-by-step explanation:
This is actually really easy you just have to subtract 36 from 100
Hope this helps also please mark brainliest
Answer: 8
<u>Step-by-step explanation:</u>
The formula for the sum of the angles of a polynomial is:

1080 = 180(n - 2)
1080 = 180n - 360
1440 = 180n
8 = n