dXdW rAFA0 and rA kCA Use Ploymath or MATLAB programs avai
     dX/dW = -r_A/F_A0, and -r^\'_A = kC_A  Use Ploymath or MATLAB programs available to you to solve these two derivatives to solve for X and y. You can assume appropriate values for the constants or use the values given in section 4.5 of your textbook. 
  
  Solution
I have taken 1 as the value for all the constants in the equation please substitute them yourself from section 4.5 of your textbook mentioned in your question, the program may not give a proper output without right values assigned to the variables.
Matlab Code
k = 1;
 C = 1;
 F = 1;
 e = 1;
 a = 1;
 f = @(t,x) [(k*C*(1-x(1))*x(2))/(F*(1+e*x(1)));-a*(1+e*x(1))/(2*x(2))];
 [t,xa] = ode45(f,[0 2],[0.5 0.5]);
 figure(1)
 plot(t,xa(:,1))
 title(\'x(t)\')
 xlabel(\'t\'), ylabel(\'x\')
 figure(2)
 plot(t,xa(:,2))
 title(\'y(t)\')
 xlabel(\'t\'), ylabel(\'y\')

