Answer:
Four less than an unknown value E)
![y-4](https://img.qammunity.org/2021/formulas/mathematics/high-school/u6dkhr1hbg44jt3eyd30g7rzw0ao15ueb4.png)
Quotient of a variable and four B)
![(z)/(4)](https://img.qammunity.org/2021/formulas/mathematics/high-school/3nutdtuweppi0qihc649q1khlgwqx48r6a.png)
Some number to the power of four A)
![a^4](https://img.qammunity.org/2021/formulas/mathematics/high-school/ysajl2pguqktwxosjf9ka7migeix3feu7e.png)
Four times an unknown value D)
![4x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mztpirqdwgp1mw0ou3bdvj358jkqdswuzb.png)
Four more than some number C)
![b+4](https://img.qammunity.org/2021/formulas/mathematics/high-school/offqt0f0tx2dekss4ta5hluzxmdfl4pcrb.png)
Explanation:
Let's analyze each statement separately:
- Four less than an unknown value --> this means that we have to subtract 4 to an unknown value. Calling
the unknown value, it means we have to write
![y-4](https://img.qammunity.org/2021/formulas/mathematics/high-school/u6dkhr1hbg44jt3eyd30g7rzw0ao15ueb4.png)
- Quotient of a variable and four --> this means we have to divide a variable by 4. Calling
the unknown variabl, it means we have to write
![(z)/(4)](https://img.qammunity.org/2021/formulas/mathematics/high-school/3nutdtuweppi0qihc649q1khlgwqx48r6a.png)
- Some number to the power of four --> this means that we have to write the power of a number, in the form
, where m in this case is equal to 4. Calling
the unknown number, it means we have to write
![a^4](https://img.qammunity.org/2021/formulas/mathematics/high-school/ysajl2pguqktwxosjf9ka7migeix3feu7e.png)
- Four times an unknown value --> this means that we have to multiply an unknown value by 4. Calling
our unknown values, we have to write
![4x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mztpirqdwgp1mw0ou3bdvj358jkqdswuzb.png)
- Four more than some number --> this means we have to add 4 to an unknown number. Calling
the unknown number, it means we have to write
![b+4](https://img.qammunity.org/2021/formulas/mathematics/high-school/offqt0f0tx2dekss4ta5hluzxmdfl4pcrb.png)