help me solve this please

Rosie runs her own hot dog stand on the U of A campus. The monthly cost of the cart rental and business permit is $1,000. Rosie's contribution margin per unit is $1.00 and her contribution margin ratio is 50%. How many hot dogs does Rosie need to sell each month to break even? How much sales revenue does Rosie need to generate each month to break even? How many hot dogs does Rosie need to sell each month to break even? First identify the formula, then compute the breakeven points in units. (For amounts with a $0 balance, make sure to enter "0" in the appropriate cell) How much sales revenue does Rosie need to generate each month to break even? Enter the formula, then compute the breakeven point in sales dollars. For amounts with a $0 balance, make sure to enter "0" in the appropriate cell.)