Purchase$-$related transactions

A retailer is considering the purchase of $1,000$ units of a specific item from either of two suppliers. Their offers are as follows:

Supplier One: $$34\mathrm{.}80$ a unit, $\frac{1}{10},\frac{n}{30},$ no charge for freight.

Supplier Two: $$35\mathrm{.}00$ a unit, $\frac{2}{10},\frac{n}{30},$ plus freight of $$200.$