Please help me with this question i need answers to a and b !

Can someone me with my hwplz(only the circled ones)

Give me the equations of two lines that have the same slope but are not parallel.

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%