hello please show how to solve these equations and provide answers with all steps of work included

Solve the formula A = L' + 2R for L. (2 marks) W = 2, 1 for C 7. - Solve the formula VLC (3 marks) 8. Airplane A travels 2400 km at a certain speed. Plane B travels (4 marks) 1800 km at a speed 50 km/h faster than Plane A in 2 hours less time. Find the speed of each plane. 9.A7-5 Determine the nature of the solutions of each of the following equations. a. x' - 4x+13=0 (2 marks) b. 5x2 - 2x -4=0 (2 marks) c. 9x2 -12x +4=0 (2 marks) 10. Write a quadratic equation having each of the following solutions. a . 2 and 4 . (3 marks) b. iV7 and -iv7 (3 marks) 11. Solve (x2 - 3) + (x2 -3) - 2=0 for x. (4 marks)