When a firm produces one more unit of output the total revenue they earn increases from $1,086 to $1,194, and their total cost of production increases from $828 to $903. When this last unit of output was produced, what was the change in profit? Enter a whole number with no dollar sign. Enter a negative sign if appropriate.

Suppose rebecca needs a dog sitter so that she can travel to her sister’s wedding. rebecca values dog sitting for the weekend at $200. susan is willing to dog sit for rebecca so long as she receives at least $175. rebecca and susan agree on a price of $185. suppose the government imposes a tax of $30 on dog sitting. the tax has made rebecca and susan worse off by a total of