D. 53, 107
The pattern is multiplying the previous number by two and then adding one to it.
6 * 3 = 18 + 2 = 20
improper fraction will be 20/3
In the simplified form the expression is x+4
Minimum = 827
Q1 = 886
Median = 995.5
Q3 = 1095.5
Maximum = 1229