Need help solving this question Under what conditions do the following production functions

Need help solving this question

Under what conditions do the following production functions

exhibit decreasing, constant, or increasing returns to scale?

a. q = L + K, a linear production function,

b. q = ALaKb, a general Cobb-Douglas production function,

Decreasing returns to scale: It occurs when the output increasesby a smaller proportion than the increase in inputs.Increasing returns to scale: when output increases by alarger proportion than...