1.) add 9 and 5 which is 14-6x
Answer: 51 notes span 6 octaves.
Step-by-step explanation:
The word "octave" is a Latin word that means "eight".
In an instrument, Each octave is made up of 8 musical notes.
If we have 51 notes , the number of octaves can be made in it = 
![=6.375\approx6\ \ \ \ \ \text{[Rounded to the nearest whole number]}](https://tex.z-dn.net/?f=%3D6.375%5Capprox6%5C%20%5C%20%5C%20%5C%20%5C%20%5Ctext%7B%5BRounded%20to%20the%20nearest%20whole%20number%5D%7D)
Hence, 51 notes span 6 octaves.
Answer:
The total number of ways are 315.
Step-by-step explanation:
Consider the provided information.
A certain university will select 1 of 7 candidates eligible to fill a position in the mathematics department.
Therefore the number of ways are:
ways
There are 7 ways to fill math position.
2 of 10 candidates eligible to fill 2 identical positions in the computer science department.
Therefore the total number of ways are:

Hence, there are 45 ways to fill computer science position.
Total number of ways = 7 × 45 = 315 ways.
Hence, the total number of ways are 315.