Step by step explanations please!

The aggregate production function for a given economy is Q = AK\"L3, where Q represents output, K represents inputs of capital, L represents inputs of labour, and A, a and B are all strictly positive constants. a) Draw a sketch of the total product of labour (holding capital fixed at an arbitrary level) b) Draw a sketch of the marginal product of labour (holding capital fixed at an arbitrary level) c) Now suppose a = 0.3 and = 0.7. If capital and labour grow continuously at 3% and 2% respectively, what growth rate of output should be expected