Not sure what this is supposed to look like

Let us assume that before 1830 the Canadian output per capita at time t was described by the following aggregate production function: yt = ZtVXt/Nt where Zt stands for the aggregate productivity level at time t, Xt denotes the stock of land used in agriculture at time t and Nt represents the aggregate population at time t. a. Derive a relationship between the growth rate of the output per capita from time tto t+1, and the growth rate of the aggregate population from time t to t+1 under the assumptions that productivity grows at a constant rate a and land grows at a constant rate b. (5 points)