Erie Company manufactures a mobile fitness device called the Jogging Mate. The company uses standards to control its costs. The labor standards that have been set for one Jogging Mate are as follows:

$\backslash$table$[[$Standard$,$Standard Rate,Standard$],[$Hours$,$per Hour,Cost$],[30$ minutes,$$5\mathrm{.}80,$$$2\mathrm{.}90$