$($d$)$ What would be the profit from selling to $300$ customers with ONE truck?

$2.$ Suppose $T(x)$ is the tax on taxable income $x.$ The federal income tax rate is

$\backslash$table$[[,$Between,But Not Over,Base Tax,Rate,Of the Amount Over$],[1,$$$0,0,10\%,$$$0\mathrm{.}00,],[2,$$$7,550,$$$30,650,$$$755\mathrm{.}00,15\%,$$$7,550$