HELP ASAP!! please!

A company invests 55M dollars in creating a new revision of their security software that they will sell on the open market. They anticipate they will generate $8M over three years. What is the anticipated return on investment? if the planned value for a project is 550.000, a WBS task actual cost is $25.000, and the earned value is $28.000, is the project over or under budget and what is its cost variance? 1. It's cost variance is $25.000 and it is over budget 2. It's cost variance is $25,000 and it is under budget 3. It's cost variance is 53.000 and it is under budget 4. The cost variance is 53.000 and it is over budget You are managing the development of the navigational of a self driving car. You have estimated the number of user screens, Inputs and outputs, algorithms, data elements and external interfaces you are likely to need in the system and used these in a formula to calculate an estimate and a cost estimate, schedule estimate. What type of cost estimation approach are you using