How much should I expect to pay to jump start a car?

According to the owner’s manual, my 2019 Jeep Compass has two batteries. I’ve never driven a car with two separate batteries—I’m used to just one—so I’m wondering where this second battery is located, and how do I get to it?

I’m considering buying a Mercedes A-class, but I spend a lot of time on the road—especially on highways—so having cruise control is essential for me. Does the A-class come standard with cruise control?

What kind of gas mileage should I expect from my new Honda Accord? I feel like I’ve been filling up the tank a lot more often than I used to in my last car, so I’m wondering if the car gets bad gas mileage or if there’s an issue somewhere that I need to address.