Please help w the following question, looking for matlab code as well

3. (LP Application: Project Scheduling) For the following question, (1) formulate an LP model to determine the early start time of each activity and the minimal duration that it requires to complete the project, and (2) using MATLAB linprog function, find the solution. You are responsible for scheduling the activities required for construction of a small commercial establishment. These activities, the expected duration of each, and an indi- cation of which other activities must precede each are shown in the table below: Job Description Duration Must follow Job(s) Land leveling and excavation 9 2 Pour retaining walls and foundation 7 3 Install basement support structure 5 2 Install floor joists 3 2 5 Construct exterior walls 6 3,4 6 Install walls and flooring 7 4 7 Install ceiling/roof superstructure 4 5,6 Install electrical/mechanical/plumbing 9 6 Rough finish interior (wallboard. etc.) 7 10 Install roofing material 11 Finish interior 8 12 Landscaping 11 For example, construction of the exterior walls of the facility is estimated to take six crew days. and may not begin until the basement support structure has been completed- Job 3-and the floor joists have been installed-Job 4