D because its a triangle so it would be 3x but then you have to add the 4 for the longer side.
Answer:
30
Step-by-step explanation:
the answer is 30 because if you count by 6 it would go 6,12,18,24,30,36,42 and if you go by 15 it would be 15,30,45,60,75,90..... and the only number that you see twice is 30 so the answer would be 30. Hope this helped...
Answer:
check the screenshot I attached:
Answer:
12
Step-by-step explanation:
So, all you have to do is multiply 6 and 2.
In 
If you add + it equals 1 whole.
If 2 equals 1 whole. You multiply 6 by 2.
Hope this helped!
