
Plug in A = 13

Add 1 to both sides:

Divide 2 to both sides:

Find the cube root of both sides:
![\sf~b=\sqrt[3]{7}](https://tex.z-dn.net/?f=%5Csf~b%3D%5Csqrt%5B3%5D%7B7%7D)
The answer would be D 196
Pretty sure the answer is F=4 2/3 I think
Answer:
I belive it would be D
Step-by-step explanation:
All the angles in any triangle add up to make 180°.