Question

I need to find A and C

Answer 1

if we take a look of the graph, let's notice that

AC = 4x + 4

AB = 14

BC = 3x - 4

now, AC = AB + BC,

$\bf AC=AB+BC\implies AC-BC=AB\implies \stackrel{AC}{(4x+4)}-\stackrel{BC}{(3x-4)}=\stackrel{AB}{14} \\\\\\ 4x+4-3x+4=14\implies x+8=14\implies x=6 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ AC=4(6)+4\implies \boxed{AC=28}$

Answer 2

Then find it sksngjsjjsjdjgjsjajcjvjsjajf