B. perform the indicated operations
[tex] \frac{4}{5} - \frac{2}{3} \times \frac{1}{2} [/tex]
[tex] - \frac{13}{5} \div \frac{26}{14} + \frac{3}{16} [/tex]
[tex](1.8 \div 0.3)(4.4 - 3.9) - 5.6[/tex]
[tex](1.1 + 8.8)(6.6 + 2.2)[/tex]
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