Answer:
Step-by-step explanation:
Let [tex]x[/tex] be the number we're looking for.
So, 90% of [tex]x[/tex] is equal to 79.2.
This can be written as: [tex]0.90x = 79.2[/tex].
Divide both sides by [tex]0.90[/tex] and you have your answer of [tex]x=88[/tex].