Part B is what i need help with

Assume the following accounts and amounts were reported by a nation last year: Government purchases of goods and services were $5.6 billion; personal consumption expenditures were $41.2 billion; gross private domestic investment amounted to $20 billion; personal savings were estimated at $2 billion; imports of goods and services amounted to $7.5 billion; and the exports of goods and services were $5 billion.

(a)

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Determine the nations gross domestic product. (Enter amount in billion. Round answer to 1 decimal place, e.g. 527.5.)

Gross domestic product (GDP)

$

billion

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(b)

Determine the nations gross domestic product, if the dollar amounts of imports and exports are reversed? (Enter amount in billion. Round answer to 1 decimal place, e.g. 527.5.)

Gross domestic product (GDP)

$

billion