D. Nothing, since there was no control group.
I think x=90°, and z=136°
You should multiply the numbers to get your solution. either 345*25 or 3 and 25
dose this help?
Answer:
4)..21 units
5). 15 units
6). 25 units
Step-by-step explanation:
4). Since ΔABC ~ ΔDEF,
Their corresponding sides will be proportional.

Since, 

x = 
x = 21 units
5). Since ΔABC ~ ΔDEF,



x = 15 units
6). Since ΔABC ~ ΔDEF,



x = 25 units