b) This tissue is very smooth and has what function? 3. a) The tunica media is the middle layer of arteries and veins and is made of these tissues:

Write a new equation that has the same solution as \( 4 t=20 \). Show your work to prove it has the same solution.

c) \( \left[\left(\frac{2}{3}-\frac{1}{4}\right) \cdot 2-\frac{1}{10}\right] \cdot\left(\frac{2}{7}-\frac{5}{2}\right. \)

\( 7 \pm \frac { \sqrt { 49 - 44 } } { 2 } \)

\( -2x^{2}+\sqrt {13x-\sqrt {10x-9}} \)

\( \begin{array}{ll}\text { 43. } 3 x^{2}-3 x<2 x^{2}+4 & \text { 44. } 5 x^{2}+3 x \geq 3 x^{2}+2 \\ \text { 45. } x^{2}>3(x+6) & \text { 46. } x^{2}+2 x>3 \\ \text { 47. } x^{2}<4 & \text { 4. } x^{2} \geq 9\end{array} \)