X=45 since 90-45=45
Hope this helps
It depends on how many options you have
You multiply the total number of books you have time 5 because you can choose 5
I manually graphed the equation
Answer:
1r
Step-by-step explanation:
(5r-4)(2r-6r+4)
1(5r-4)+1(2r-6r+4)
5r-4+2r-6r+4
5r+2r-6=1r
1r-4+4
-4+4=0
1r
