Answer:
20
Step-by-step explanation:

So the answer is 20
Answer:
-14r + 6
Step-by-step explanation:
-12r + 6 - 2r
Answer:
= r²−4r+3
Step-by-step explanation:
(r - 3) (r - 1)
(r x r) + (r x -1) + (-3 x r) + (-3 x -1)
r² + - r - 3r + 3
= r²−4r+3
drawing isn't shown, pls take a screenshot or photograph the exercise
Well not all lines are lines of symmerty, because if you draw a let's say a rectangle on a piece of paper and draw a diagonal line through it, well the two sides don't really lie perfectly on one another!!