Current Attempt in Progress

Bramble's standard quantities for $1$ unit of product include $3$ pounds of materials and $2\mathrm{.}5$ labor hours. The standard rates are $\backslash (\backslash$$ $3\backslash )$ per pound and $\backslash (\backslash$$ $9\backslash )$ per hour. The standard overhead rate is $\backslash (\backslash$$ $8\backslash )$ per direct labor hour. The total standard cost per unit of Bramble's product is

$\backslash$$$31\mathrm{.}50.$

$\backslash$$$42\mathrm{.}50.$

$\backslash$$$51\mathrm{.}50.$

$\backslash$$$20\mathrm{.}00.$