$\frac{dw}{dz}w=\left(\frac{4+5z}{5z}\right)\left(5-3z\right)$

$\lim_{x\to\infty}\left(\frac{13x^2}{e^{9x}}\right)$

$\frac{3x-6>2}{x+1}$

$\frac{8^7}{8^5}$

$\left(y^5+2y^3+y^2-1\right)\left(y-1\right)$

$\lim_{x\to1}\left(\frac{ln\:x}{x^2-1}\right)$

$\int_0^{15}\left(100\left(q+20\right)e^{-\left(0.2q+2\right)}-23.58\right)dq$