$9.30\mathrm{tot}13.15\mathrm{is}3\mathrm{hr}45\mathrm{min}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}\mathrm{Total}\mathrm{payment}=(\mathrm{first}2\mathrm{hr})+(\mathrm{next}1h45\mathrm{min})\phantom{\rule{0ex}{0ex}}=\$7.50(\mathrm{first}2h)+(4\times \$4)\phantom{\rule{0ex}{0ex}}=\$23.50\left(\mathrm{ans}\right)$ 



Ba
$\mathrm{total}=3.5\mathrm{hours}\phantom{\rule{0ex}{0ex}}\mathrm{first}\mathrm{two}\mathrm{hours}=\$7.50\phantom{\rule{0ex}{0ex}}\mathrm{next}\mathrm{thirty}\mathrm{minutes}=\$4\phantom{\rule{0ex}{0ex}}3.5=2\mathrm{hrs}+30\mathrm{mins}+30\mathrm{mins}+30\mathrm{mins}+15\mathrm{mins}\phantom{\rule{0ex}{0ex}}2\mathrm{hrs}=7.50\phantom{\rule{0ex}{0ex}}30\mathrm{mins}=4\phantom{\rule{0ex}{0ex}}30\mathrm{min}=4*3=\$12\phantom{\rule{0ex}{0ex}}15\mathrm{min}=30/15=4/2=2\phantom{\rule{0ex}{0ex}}\$7.50+\$12+\$2=\$21.50$
Comments
2




Es
$\mathrm{From}0930\mathrm{to}1315\mathrm{is}3h45\mathrm{mins}\phantom{\rule{0ex}{0ex}}3h45\mathrm{mins}2h(\$7.50)\phantom{\rule{0ex}{0ex}}=1h45\mathrm{min}\phantom{\rule{0ex}{0ex}}1h\mathrm{have}2\mathrm{half}\mathrm{an}\mathrm{hour}]\phantom{\rule{0ex}{0ex}}3\mathrm{half}\mathrm{an}\mathrm{hour}\mathrm{means}\$4\times 3\phantom{\rule{0ex}{0ex}}=\$12\phantom{\rule{0ex}{0ex}}15\mathrm{minutes}\mathrm{left}(\mathrm{part}\mathrm{of}\mathrm{thereof})\mathrm{means}\$4\phantom{\rule{0ex}{0ex}}\$12+\$4+\$7.50\phantom{\rule{0ex}{0ex}}=\$23.50$ 



Su
$\mathrm{it}\mathrm{is}\mathrm{actually}\mathrm{rates}\phantom{\rule{0ex}{0ex}}$ 



Na




Ba



