Answer:
the answer is an equal sign
66/55 in simplest form is 6/5. Because...
66÷ 11= 6
55÷ 11= 5
A straight line is 180°. 180°-135°=55°, so x=55°, which is an acute angle because it is less than 90°.
0.925x^2 - 4x + 20 = -1.125x^2 + 6x + 40 (at break even point)
2.05x^2 - 10x - 20 = 0
x = [ - (-10) +/- sqrt(100 - 4*2.05*-20) / (2*2.05)
x = 6.40, -1.52 Ignore the negative
Answer is 6.40