I will give you brainliest!!!! Which system of linear equations represents this equation?

Answer:
B
Step-by-step explanation:
Since Jacob starts at mile 3, his y intercept is 3. He also walks 5km/h, so his slope is 5. Since Emma starts at 0, her y intercept is 0, so it is not written. She also moves at 6km/h, so the slope is 6.