Answer:
I got 2
Step-by-step explanation:
2
It's 2 because the numbers go up by 2 each time the mean is identified meaning that the mean of each is 4.
?
2x+4x+6x = 10x+84
12x-10x = 84
2x = 84
x = 42
1.5 hours
1/2 + 1/2 + 1/2 =1.5
