Please explain detail

Lin Corporation has a single product whose selling price is $135 per unit and whose variable expense is $54 per unit. The company's monthly fixed expense is $40,280. Required: 1. Calculate the unit sales needed to attain a target profit of $6,700. Note: Do not round intermediate calculations. 2. Calculate the dollar sales needed to attain a target profit of $9,100. Note: Round your intermediate calculations to the nearest whole number