Hi can you please help me with this question because I am finding alot of difficulties

P3 (Task 4): Solve engineering problem involving geometric progression. On commencing employment, a man's starting salary is $10,000 per annum with annual increments of $350. What will be his salary in the 9th year? If the man is invested half of his 9th year salary at compound interest of 8% per annum, calculate the value after 10 years. P4 (Task 5) Perform the basic operations of multiplication and division to a complex number in both rectangular and polar form. a) Evaluate in Polar form if Z, =1+ j2, Z2 =4-j3, Z3 = -2+ j3 and Z4 = -5 - j (Change into Polar form) a) ZZ3 + Z4 Z1 + 23 1) Zz - Z4 b) Evaluate in Cartesian form (Change into Cartesian form) a) 3420 x 152450 c) 5230 x 4280 = 10Z-40 b) 2.42650 x 4.42 - 210 M2 (Task 6) Use complex numbers to solve a parallel arrangement of impedances giving the answer in both Cartesian and polar form a) Two impedances, Zi = (3+ j6 )$2 and Z2 = (4 - j3)$2 are connected in parallel to a supply voltage of 120 V. Determine the magnitude of the current and its phase angle relative to the voltage both in polar form and Cartesian form. Xc 20 $2 A, 30 $2 b) For the circuit shown in the adjacent figure, determine the current I R2 40 S? X 50 12 flowing in the circuit and its phase angle relative to the applied YYL voltage in Cartesian form. Calculate the branch currents in polar R2 25 52 form. V Assignments handed in late will meet the Pass criteria only