A firm has two ingredients inputs for its finished goods trail mix units: peanuts and candy. Typically the firm uses 12 kilograms of peanuts for every 3 kilograms of candy.

• Peanut standard price is $2.00 per kilogram
• Candy standard price is $6.00 per kilogram
• Peanut actual price is $3.00 per kilogram
• Candy actual price is $5.00 per kilogram

This period, the firm instead actually used 90 kilograms of peanuts and 10 kilograms of candy (producing a total of 100 kilograms of trail mix).

What is the firm's mix variance for trail mix this period (round to nearest cent if necessary)?

	a.	$40 unfavorable
	b.	$20 unfavorable
	c.	$20 favorable
	d.	$40 favorable