$($b$)$ Raytheon Co$.$ is a U$.$S based MNC that purchases most of the materials from Australia and generates a small portion of its sales from exporting to Australia. Its U$.$S sales are denominated in U$.$S dollars whereas its Australian Sales are denominated in Australian dollar$($C$$).$ Raytheon wants to assess its economic exposure, which is the exposure of its total cash flows to exchange rate movements. Assume that Raytheon Co$.$ expects three possible exchange rates for the Australian dollar over the period concern: $$1\mathrm{.}50,$$$1\mathrm{.}55,$ and $$1\mathrm{.}60.$ Using the estimated sales and expenses for Raytheon's U$.$S$.$ and Australian business segments $($millions of currency units$).$ Determine how the costs, revenue, and cash flow would be affected by three possible exchange rate scenarios

$\backslash$table$[[,$U$.$S Business,Australian Business$],[$Sales$,$$$420,$A $$4$