Answer:
1.) 4
2.) -11
3.) -4
4. 19
Step-by-step explanation:
Since the architect wants similar figures, it comes from the definition of similar triangles that the ratio of corresponding sides (all 3 sides) should be equal.
So,
.
Let's find CB.

So, CB should be 8. Option C is correct.
ANSWER: Change the length of side CB to 8 feet
All u need to do is distribute the 3
(2x+3)3
6x+9
then u can’t do anything else because these terms are not the same and u can’t combine them. hope this helps :)
100 kilometers you solve with a proportion 2/20=10/x
2x=200 so x=100