Based on the data provided in Table $2\mathrm{.}6,$ what is the flow time of customers from $9$:$00$ a$.$m$.$ to $9$:$45$ a$.$m$?$

Note: Round your answer to $1$ decimal place.

Customer Time in Time out

$19$:$029$:$11$

$29$:$029$:$08$

$39$:$049$:$34$

$49$:$079$:$18$

$59$:$089$:$33$

$69$:$109$:$18$

$79$:$149$:$37$

$89$:$199$:$45$

$99$:$199$:$45$

$109$:$249$:$44$