The answer is 6.7
explanation : take 5.5 and add it from 6.7
11,15,19,23
an = 11 + 4(n-1)
an = 11 + 4n - 4
an = 4n + 7
0.0006 would be your answer based on the order you put them in.
For -4+2, plot -4, then move to the right 2 spaces. You should land on -2.
For -4+(-2), plot -4 then move the left 2 spaces. You should land on -6.
