TB MC Qu$.03-30($Static$)$ During the past six months, a purchasing...

During the past six months, a purchasing agent placed the following three orders for coal:

Tons of Coal

$\backslash$table$[[$Price per Ton,$$28\mathrm{.}50,$$$,200,500],[,$$$87\mathrm{.}25,$$$88\mathrm{.}00,]]$

What is the weighted arithmetic mean price per ton?

Multiple Choice

$$89\mathrm{.}18$

$$87\mathrm{.}25$

$$68\mathrm{.}47$