Solve for x. 1. 169% = 13 64 8. 2. 4*+1 = 1 3. 45x-13 4. 43x+2 < 64 5. @2 6. Robert invested P30,000 after graduation. If the average interest rate is 5.8% compounded annually. How much money will be added to his account after 15 years? just help me