Swanson and Associates presently leases a copy machine under an agreement that calls for a fixed fee each month and a charge for each copy made. Swanson made 7,000 copies and paid a total of $300 in March; in May, the firm paid $250 for 5,000 copies. The company uses the high-low method to analyze costs.

Swanson's monthly fixed fee is (Round your intermediate calculations to 3 decimal places final answer to nearest dollar amount):

an amount other than those given above.

$157.

$151.

$125.

$147.

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