Answer:
I can get you jump started a bit.
Step-by-step explanation:
So Each of those pairs of figures are Similar.
This means they have equal angle measures but different side lengths.
To find it, we have to make a <u>Proportion:</u>
<u>Example: #11</u>
<u />
<u />
So let's solve the first one!

Easy As Pie!
If you need more help, contact me! :)
Hope this Helps!
P.S. Stay Safe!
Answer:
-0.2
Step-by-step explanation:
Gradient/slope = 
(5,5) - (1,5) = (4,5) is the answer