The Oceanside Garden Nursery buys flowering plants in four-inch pots for $1.00 each and sells them for $2.50 each. Management budgets monthly fixed costs of $2,100 for sales volumes between 0 and 5,000 plants. 2 Use the contribution margin approach to compute the company's monthly breakeven point in units. (7 7.000 pts) (Always use cell references and formulas where appropriate to receive full credit.) Use the contribution margin ratio approach to compute the breakeven point in sales dollars. (2 pts) 3 2.000 (Always use cell references and formulas where appropriate to receive full credit.) Use the contribution margin approach to compute the monthly sales level (in units) required to earn a 4 target operating income of $5,000. (1 pt) 1.000 (Always use cell references and formulas where appropriate to receive full credit.)