If w = sinhz, where w=u+iv and Z= x+iy, how do I find and describe the curves (hint: show that the lines y=constant transform into hyperbolas in the w-plane and for the lines x=constant show that it transforms into an ellipses)?

22. catie is starting a babysitting business. she spent $26 to make signs to advertise. she charges an initial fee of $5 and then $3 for each hour of service. write and solve an inequality to find the number of hours she will have to babysit to make a profit. interpret the solution.!