(20)/(1+125(0.000591))
$2x^{2}$+4x+16
-2/3x+5
52008รท100
2300-(-2300)
20-(-5)
119, 106, 224 in percent
(20)/(1+125e^(-0.8(5.657)))
(2c-3d)(-d-3e)
19.378 in percent
(a-6)(2a+2)
