9 9x5=45
5,10,15,20,25,30,35,40,45
9
27, 36, and 45.
Here's a good nines trick.
9
18
27
36
45
If you pay attention is just adds a ten and minuses a 1 from each number.
8,7,6,5. And 1,2,3,4.
Hope this helps :)
These are alternate exterior angles
they alternate (or cross) the traversal (the center line)
and they are exterior (they are both outside)
and they are equal
100 = x + 105 subtract 105 from both sides
-105 -105
-5 = x
x = -5
An expression for "add 9 and 3, then multiply by 6" is easy
(9+3) 6
12•6