Answer:
Profit = $6450
Step-by-step explanation:
To calculate total profits from this decision we need to calculate total positive contribution.
Total contribution from D = 3 * 900 = 2700
Total contribution from E = 2.25*1400 = 3150
We assume rent is all profit so total monthly profit
= 2700 + 3150 + 600 = 6450
Hope that helps.