$$-y+2\left(9-y\right)<0$$

$$\left(2^1\right)\left(2^m\right)$$

$$\left(2\sqrt[4]{x}-6\sqrt[3]{x}+10x\right)-\left(3x+1-6\sqrt[4]{x}\right)$$

$$\int\cos\left(\sqrt{x}+1\right)dx$$

$$\frac{6m^{3}n^{4}}{12m^{4}n^{5}}$$

$$\frac{\left(4y^2+2y-12\right)}{2+y}$$

$$\int_7^{14}8.3e^{-.029x}dx$$