Answer:
R=9
Step-by-step explanation:
Change the sign of -2 to 2
Add 2 to 7
Answer:
A !
Step-by-step explanation:
Substitute the value of the variable into the expression and simplify.
Hope this helps!
-Lei
Answer:
.................................
Step-by-step explanation:
Answer:
under what topic is this?
Answer:
I'm pretty sure it's the last one