First, distribute the minus sign across the second set. So you have:
x - y + 1 - x - y + 1
Now, we combine like terms:
x-x=0
-y-y=-2y
1+1=2
So we have -2y+2
Hope that helps.
Alex is making a square with 4 corners, brittanie is making a triangle with 3 corners. That's the difference, hope it helped a little, it's not a full answer but maybe it will help.
2/11
there’s 2 R’s and 11 total so
possible outcomes/ overall outcomes
Y is the total price. X is the number of months. 30 is a flat, one time payment.
The awnser is 729 Bc 81 times 9 equals 729
