1. Mike Smith wants to know how the Insurance & Maintenance (I&M) expenses for Regular disks impacts the net income for Regular disks. The l&M expenses can vary between $3500 and $5000 (assume step size of $250) and the price per unit of Regular disks can vary between $12 and $24 (assume step size of $2). Show the net income values for Regular disks under the various combinations of l&M expenses and price per unit as above? What is the net income for Regular disks when l&M expense is $4500 and price per unit is $18? a. b. What Excel feature did you use to answer this