Cual de estos no es un decimal periosico

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Which number line represents the solution set for the inequality -1/2x> 24?

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.