X-2y=10 and x+3y=5 elimination

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

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%