The answer is
6X - 4 = 12 + 2X
I think it is 20 seconds because when you multiply six times x, you get twelve. And in this case, the x equals two. So, because you multiplied two to six, you do the same thing to the ten seconds, which is twenty. Sorry if this is the wrong answer.
Answer:
it is 30°
Step-by-step explanation:
it is 30° because it is smaller that the it is 60° but bigger then the it is 90°(right angle)
5. 4 rows of circles with 4 columns of circles
6. A Hexagon with 4 circles