• y=11x
• y=11x-20
• y= 11x+20
• y= 13x+20
• y= 13x

Answer:
y= 11x + 20
y = 13x
Step-by-step explanation:
Both students head North.
Jenna travels 13 miles per hour or 13x. Her equation is y = 13x.
Alex starts 20 miles North which means he is +20 miles ahead of Jenna. He travels 11 miles per hour or 11x. His equation is y = 11x+20.