The height of a triangle is 4 inches greater than twice its base. the area of the triangle is no more than 168 in.² which inequality can be used to find the possible lengths, x, of the base of the triangle?
a. x(x+2)=> 168
b. x(x+2)=< 168
c. 1/2x(x+4)=< 168
d. 1/2x(x+4)=> 168

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?