PLEASE HELP AND EXPLAIN questions 25-30. Thank you

Problems 23-30 refer to the function g shown in the figure. Use the graph to estimate the indicated function values and limits. g (x) -5 -5 X 5 Figure for 23-30 23. g (-3.1 ) 24. g ( -2.1 ) 25. 8 ( -2.9) 26. g( -1.9 ) 27. (A) lim g(x) (B) lim g(x) (C) lim 8(x) (D) g(-3) (E) Is g continuous at x = -3? Explain. 28. (A) lim g(x) (B) lim g (x) (C) lim, 8(x) (D) 8(-2) (E) Is g continuous at x = -2? Explain. 29. (A) lim g (x) (B) lim g(x) (C) lim g (x) (D) 8(2) (E) Is g continuous at x = 2? Explain. 30. (A) lim g(x) (B) lim, g(x) -4 x-4 (C) lim g (x) (D) 8(4) (E) Is g continuous at x = 4? Explain