Lin Corporation has a single product whose selling price is $140 and whose variable expense is $70 per unit The company's monthly fixed expense is $32,600. Required: 1. Using the equation method, determine for the unit sales that are required to earn a target profit of $6,250. (Round up your answer to the nearest whole number.) Unit sales 2. Using the formula method, determine for the unit sales that are required to earn a target profit of $8,000. (Round up your answer to the nearest whole number.) Unit sales