To find the pattern in the given sequence, we can calculate the differences between adjacent terms:

20 - 1.5 = 18.5

50 - 20 = 30

110 - 50 = 60

We can see that the differences themselves form a sequence: 18.5, 30, 60. Specifically, the differences increase by a factor of 2 each time.

So, to find the next three terms, we can continue this pattern:

110 + (60 * 2) = 230

230 + (120 * 2) = 470

470 + (240 * 2) = 950

Therefore, the next three terms in the sequence are 230, 470, and 950.

So the complete sequence is:

1.5, 20, 50, 110, 230, 470, 950.

PA BRAINLLIEST PLEASE