Without using a calculator, compute the value of the following expressions.  

1. $\frac{3}{7}\div \frac{2}{3}$ 

   Step 1 (a):

   $\frac{ 3 }{7 } \div \frac{2}{3} = \frac{3}{7} \cdot \frac{3}{2}$

   Step 2 (a):

   $\frac{3 \cdot 3}{7 \cdot 2} = \frac{9}{14}$

2. $1.2\div0.04$ 

   Hint (b):

   $1.2 \div 0.04 = \frac{12}{10} \div \frac{4}{100}$

   Answer (b):

   $30$

3. $\frac{11}{4}$ of $\frac{3}{7}$ 

   Hint (c):

   In this case, "of" indicates to multiply.
   Follow the steps in part (a).

4. $4.16(0.2)$ 

   Hint (d):

   Follow the steps in part (b).