King Abdulaziz University Applied Linear Algebra Inverse Matrix Questions

Please help me solve these questions asap. The deadline is in about an hour. The course is APPLIED LINEAR ALGEBRA. Thank you!

University of Business and Technology
College of Engineering
Math 241 Midterm exam
Question 3: Given the following matrices, find the following (6 points)
,
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University of Business and Technology
College of Engineering
Math 241 Midterm exam
_____________________________________________________
______________________________________________________
University of Business and Technology
College of Engineering
Math 241 Midterm exam
Question 5: Find the invrse of the following matrix
(4 points)