$$\frac{2}{3}\left(\frac{x-5}{4}\right)+\frac{2x}{5}$$

$$f\left(x\right)=1\left|1\right|\left|2\right|$$

$$\frac{y^2}{y-6}$$

$$6b^2+7^4$$

$$.25\log_c\left(w\right)+4\log_c\left(y\right)-\log_c\left(z\right)$$

$$c\cdot c^5$$

$$932.8\cdot0.6$$