Find m < b
Picture Included

Answer:
<b= 48 degree
Step-by-step explanation:
<A + <B + <C = 180 degree (Sum of angles in a triangle)
<A = 90 degree
<B = 2x + 14 degree
<C = 4x - 26 degree
[tex]90+2x+14+4x-26=180 degree\\2x+4x=180+26-90-14\\6x=102\\x=\frac{102}{6} \\x=17 degree\\[/tex]
Therefore, <B = 2x + 14 = 2(17) + 14 = 34 + 14 = 48
<b = 48 degree