hi, i need help on these questions

Oslo Company prepared the following contribution format income statement based on a sales volume of 1, 000 units (the relevant range of production is 500 units to 1, 500 units): What is the break-even point in unit sales? (Do not round intermediate calculations.) Oslo Company prepared the following contribution format income statement based on a sales volume of 1, 000 units (the relevant range of production is 500 units to 1, 500 units): What is the break-even point in sales dollars? (Do not round intermediate calculations. Round your answer to the nearest dollar amount.) Oslo Company prepared the following contribution format income statement based on a sales volume of 1, 000 units (the relevant range of production is 500 units to 1, 500 units): If the variable cost per unit increases by $1.50, spending on advertising increases by $2, 000, and unit sales increase by 250 units, what would be the net operating income? (Do not round intermediate calculations.)