4x3=12
6+6=12
These are two ways to get 12
Answer:

Step-by-step explanation:
(smaller triangle below)

(bigger triangle above)
Since you have both triangle, and all lengths you dont need to worry about calculating the square
Add both together

D is the correct answer to your question
Answer:
4:5 ,15:16
Step-by-step explanation:
divide 12 and 15 by 3 to get 4 and 5
Answer:
B - 18
Step-by-step explanation:
149 total minutes minus 5 for the introductions leaves 144.
144/5=18