Express $\frac{17}{{?}_{30}}$ degrees in rectangular form.

$14\mathrm{.}7+j8\mathrm{.}5$

$8\mathrm{.}5+j14\mathrm{.}7$

$9\mathrm{.}8+j9\mathrm{.}8$

$17+j17$

$8\mathrm{.}5+j8\mathrm{.}5$

Question $26$

Add: $100^0$

$\frac{18}{{?}_{-}}35$

$\frac{28}{{?}_{50}^0}$

$2885$

$\frac{21\mathrm{.}3}{{?}_{15}}$

$(\frac{28}{{22}^0})$

$\frac{21\mathrm{.}4}{{?}_{-}}{72}^0$