$\backslash$table$[[$Quantity$,$Price $($$$),\backslash$table$[[$Total$],[$Revenue $($ $ $)]],\backslash$table$[[$Marginal$],[$Revenue $($ $ $)]],\backslash$table$[[$Long$-$Run Total$],[$Cost $($ $ $)]],\backslash$table$[[$Marginal$],[$Cost $($$$)]]],[0,100,0,-,0,-],[1,95,95,95,92,92],[2,90,180,85,177,85],[3,85,255,75,255,78],[4,80,320,65,331,76],[5,75,375,55,406,75],[6,70,420,45,480,74]]$

The table above depicts the cost and demand structure a natural monopoly faces. If regulators required the firm to practice marginal cost pricing, the quantity produced would be $$ and the price charged would be $?$