Answer:
x-9
Step-by-step explanation:
"Less than" switches the way of the expression.
If the "less than" was not there it would have been:
9-x
"Less" means subtract so you would subtract x from 9.
Hope this helped!
Answer:
I need help with this too
Step-by-step explanation:
D∩E=D This is because since D is a subset of E then the elements they will have in common are the elements in D and D is not a null set
Answer:
I think it’s D
Step-by-step explanation: