Math Pre-Calculcs 30, please DO NOT provide website as an answer to see or any other kind of solution cuz it never works for me instead have solutions in images please thank you

Initials: (2) 3. Sometimes referred to as a "hole in the graph", what is a point of discontinuity? (8) 4. Solve. 2x+1 x+3 a) x+2 =- 6 x - 3 c) x+2 x+4 1 - 2x d) b ) -= 2 x x - 2 x+2 (2) 5. Given the functions f (x) =x -8 and g(x) =5+x, determine an equation for the combined function h(x) = f (g(x)) in expanded form