The table below shows the marginal cost $($MC$)$ for The Tea Shop, a perfectly competitive firm producing different quantities of tea. The market price of tea is $$10\mathrm{.}00$ a box.

Instructions: In part a$,$ round your answers to two decimal places. In part b$,$ enter your answer as a whole number.

a$.$ Complete the marginal revenue $($MR$)$ column in the table below.

The Tea Shop's Costs and Revenues

$\backslash$table$[[\backslash$table$[[$Quantity$],[($tea$)]],\backslash$table$[[$Marginal Cost$],[($dollars$)]],\backslash$table$[[$Marginal Revenue$],[($dollars$)]]],[50,$$$7\mathrm{.}00,$$