Given an output price of $500 total output (in body table), the quantity of each input (in rows 1-5), the price of inputs (in columns), and a budget of $1,200,000, calculate marginal product and marginal revenue product for each input (row 2-5). Which resources in what quantities should be employed to maximize the value of the firm?

Low skill labor	high skill labor	Supplies	Low Cap. Equip.	High Cap. Equip.	Building & Land
Input	$30,000	$50,000	$20,000	$100,000	$400,000	$500,000
1	64	120	50	250	1,000	1,350
2	130	220	98	475	-	-
3	200	300	144	675	-	-
4	266	360	186	850	-	-
5	330	400	228	1,000	-	-