Answer:
Read the explanation!
Step-by-step explanation:
<em>Let the "certain number" be </em>
<em>. </em>
(
is a symbol for multiplication).
<em>Create a few equations and expressions:</em>
The sum of 12 and a certain number: 
The product of 3 and the number: 
The sum of 12 and a certain number is equal to the product of 3 and the number:
= 
Solve!
12=3x-x
12=2x
x=6
Get the angle of pq and divided by 2 then that's your angle for r.
Answer:
The answer is b
Step-by-step explanation:
Answer:
simple 11
Step-by-step explanation:
Answer:
B. 36
Step-by-step explanation: