СРОЧНО! ДАЮ 30 баллов ​

а) <span> 28~20</span>

<span>б)  5<span>4~50</span></span>

<span><span>в)  <span>746~750</span></span></span>

<span><span><span>г)  <span>1823~1800</span></span></span></span>