Write an algebraic expression to model the unknown number problem.

the quotient of a number and nine

The quotient of a number and nine. A 1-column table with 4 rows. Column 1 is labeled Division Words with entries divided by, quotient, sharing, grouping.

Which statements are true? Select all that apply.
You can replace "a number" with a variable to represent an unknown value.
Quotient means the result of subtracting two numbers.
Division involving a variable is represented as a fraction.
The correct expression is StartFraction 9 Over n EndFraction
The correct expression is StartFraction n Over 9 EndFraction