Explanation:
We are to get the expression for the following statements;
1) The difference of nine times a number x and the quotient of that number and 5.
The product of nine and a number x is expressed as;
![=9 * x\\= 9x](https://img.qammunity.org/2021/formulas/mathematics/high-school/71frssxlkkkuhz9vfip6uqr21onboopwlu.png)
The quotient of that number and 5.
![= (x)/(5)](https://img.qammunity.org/2021/formulas/mathematics/high-school/e332fqc3vcl1xt2h5u331jovp4dil3qiea.png)
The difference between both expression;
![9x - (x)/(5)](https://img.qammunity.org/2021/formulas/mathematics/high-school/t2anftden6gblgd5x3e0i4k0p9ztlefio6.png)
Hence, the difference of nine times a number x and the quotient of that number and 5 is expressed as
![9x - (x)/(5)](https://img.qammunity.org/2021/formulas/mathematics/high-school/t2anftden6gblgd5x3e0i4k0p9ztlefio6.png)
2) Eight more than the quotient of twelve and a number n
Quotient of twelve and a number n is expressed as:
![(n)/(12)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/yagqig5hsux1dd7beyet4iszsfiljtgohn.png)
Eight more than the resulting function is;
![(n)/(12)+8](https://img.qammunity.org/2021/formulas/mathematics/high-school/2uxokmvqp6x828g3td6z7dhp1gw1gc6dgv.png)
Hence eight more than the quotient of twelve and a number n is expressed as
![(n)/(12)+8](https://img.qammunity.org/2021/formulas/mathematics/high-school/2uxokmvqp6x828g3td6z7dhp1gw1gc6dgv.png)
3) The product of a number and the quantity 'six minus the number' plus the quotient of eight and the number.
Let the number be x:
six minus the number is expressed as;
![6-x](https://img.qammunity.org/2021/formulas/mathematics/high-school/n6um4s09xqc36704z2pdog8apmcy3abj9s.png)
product of a number x and the quantity 'six minus the number is;
![x(6-x)](https://img.qammunity.org/2021/formulas/mathematics/high-school/5or3eagxqwdrva08soifdc2fa04t73x25w.png)
quotient of eight and the number is;
![(8)/(x)](https://img.qammunity.org/2021/formulas/mathematics/high-school/f914rg13tek7k3ziuvcoe8smmpolehirsb.png)
Taking the resulting sum of the last two expression
![x(6-x) + 8x](https://img.qammunity.org/2021/formulas/mathematics/high-school/mzbs0xmokfgsiwpfxse6gglephn550s8um.png)
Hence the product of a number and the quantity 'six minus the number' plus the quotient of eight and the number is expressed as;
![x(6-x) + 8x](https://img.qammunity.org/2021/formulas/mathematics/high-school/mzbs0xmokfgsiwpfxse6gglephn550s8um.png)
4) Sum of three consecutive even integers. 2x + (2x + 2) + (2x + 4).
Let the first even number be 2x
The consecutive even numbers are gotten by adding 2 to the preceding number. The two consecutive even integers are 2x+2 and 2x+2+2
the sum of three consecutive even integers is expressed as;
![= 2x +(2x+2)+(2x+2+2)\\= 2x+(2x+2)+(2x+4)](https://img.qammunity.org/2021/formulas/mathematics/high-school/4vbw4k1di7nska23o4se9pfd0newi5tva1.png)