Here is the formula to calculate GDP:
GDP<span> = C + G + I + NX
</span>Where I is the investment that include all form of capital expenditure
Both sales mentioned above could be considered as a form of Capital expenditure, so the total contribution to GRP would be:
$30 + $ 15 = $ 45
The slave trade compromise wanted the free states of the North Congress to have the power to regulate commerce
The hardships that new York has to overcome is to make things easy choices in the governments. Hope This Helps