Please help with these four questions and thanks

Question 19: 4(x+5)+3 = 4·x+4·5+3 (second option).

Question 20: (117.50-83.50)+6(22.50+3) = 34+6(25.50) --> (last option).

Third question:

375=x-28

x= 375+28

x= 403

Fourth question:

0.57, 0.66, 0.75, 0.84,...

0.66-0.57= 0.09 and 0.75-0.66= 0.09 and 0.84-0.75= 0.09

So, the next three terms are: 0.93, 1.02, 1.11

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.