Answer 1 and 2 and i'll give brainliest as well.

 h t t p s : / / w w w . y o  u t u b e   . c o m / w  a t c h ?v = 3 8 D Q r c f _ 1 m o

you can thank me later

Step-by-step explanation:

The sum of the measures of the angles of a triangle is 180. Let x be the measure of the unknown angle in the figure

2.83941151 would be the answer you're looking for! : )

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents