i hope u can show understanding working with correct answers

QUESTION 5 a. Given A= | 7 10 34 , 14| = - 21 and minor of matrix A, M. = 1 2 1 Find A - 1. [ 4 marks ] (C2, CLO1, MQF LOD 1) b. MTJ scholarship fund receives a sponsor fund of RM 150,000. The money is invested in fixed deposit, bonds, and stock. Fixed deposits pay 1.75 % interest, bonds pay 2.5 % interest and stock pay 8.5 %. MTJ invests RM5500 more in stocks than in fixed deposits. If the annual income from the investment is RM 5647.50. i. Obtain system of linear equations from information given. [ 3 marks ] (C3, CLO3, MQF LOD6) ii. Write the system of linear equations in the form matrix equations, AX=B. [ 1 mark ] (C3, CLO3, MQF LOD6) iii. Hence, by using INFORMATION from part a) find the amount was invested in each account (nearest RM)? [ 4 marks ] (C3, CLO3, MQF LOD6) c. If the interest rate for fixed deposit, bonds and stock are 2%, 5% and 10% respectively, calculate the return. [ 2 marks ] (C3, CLO3, MQF LOD6)