May someone help me with understanding these math questions please, I asked before but accidentally posted the wrong pictures so sorry about that, thanks!

2:38 4 5G Quiz 2 - Topic 1.6 (AB Fall 2019).... 3. Find the limit: -0 lim- Vx+4-2 x (A) 0 (B) (C) (D) 1 4. Find the limit: lim 4+x4 x ul - (A) (B) 3 (C) 4 (D 16 5. Find the limit: "-0 ( x+h ) +2(x+h)-1-(x2+2x-1) h (A) 2x+1 (B x+2 (D x' + 2x-1 (C) 2x+22:37 4 5G Quiz 2 - Topic 1.6 (AB Fall 2019).... 1. Find lim f(x) " where f(x) = x x52 (A) 3 (B) 2 (C 0 does not exist (D) lim x - 49 2. 7 x+7 (A) -7 (B) -14 0 (C) 14 (D) lim- Vx+4-2 3. Find the limit: x (A) 1 - (B) (C) 4. Find the limit: lim 4+x 4 x (A) (B) D 16