arturo and vivian are 160 feet apart when they begin walking directly toward one another. arturo travels at a constant speed of 3.5 feet per second and vivian travels at a constant speed of 5.5 feet per second.

let t represent the number of seconds that have elapsed since arturo and vivian started walking toward one another.

write an expression in terms of t that represents the distance between arturo and vivian.

how many seconds after the two started walking will the reach each other?