The table represents a firm's profit for producing and selling Blu Ray players. Using the marginal costs and marginal revenues provided, at what level of output does the firm maximize profits?

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ints 15 Submitting an external tool Quantity Total Marginal Total Marginal Cost Cost Revenue Revenue O' (TC) (MC) (TR) (MR) 0 2 $62 $90 $2.80 $40 4.00 $1.10 $2.00 $80 $4.00 $126 $1.60 $120 $4.00 $138 $1.20 $160 $4.00 $150 $1.20 $200 $4.00 $165 $1.50 $240 $4.00 70 $190 $2.50 $280 $4.00 $230 $4.00 $320 $4.00 $296 $6.60 $360 $4.00 100 $400 $10.40 $400 $4.00 110 $550 $15.00 $440 $4.00 120 $715 $16.50 $480 $4.00 City O ul TE O