Write the phrase as an expression.
the difference of a number t and 9

Answer:
[tex] t - 9 [/tex]
Step-by-step explanation:
Given that t represents a number which is unknown to us, the difference of the number and 9 can be expressed algebraically as:
[tex] t - 9 [/tex].
The difference of t and 9 = [tex] t - 9 [/tex].