1. below are total costs for christmas shop per month. using the high low method, what are the total costs if the christmas shop sold 33,000 units? (assume this is in relevant range)

month:

march: units sold (17,000); total costs ($21,000)

april: units sold (15,000); total costs ($20,000)

may: units sold (26,000); total costs ($24,000)

june: units sold (30,000); total costs ($26,000)

july: units sold (20,000); total costs ($22,000)