a designer made two tunnels. Tunnel A is represented by x^2+y^2+28x+5=0 and tunnel b is resented by x^2-36x+16y+68=0, where al measurements are in feet. The designer wants to verify whether a 8 feet wide and 13.5 feet high can pass through the tunnel.

Determine the maximum height of each tunnel, is the truck able to pass through either tunnel without damage, if so which tunnel(s) and why