Help plz ill give u brainliest

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

X+y=-4 x-y=2 use elimination with adding and subtraction

Ken leaves work 20 minutes late. he decides to make up time by taking the toll road instead of side streets. he can travel three times faster by taking the toll road. create an equation to represent his total travel time, including wait time, where x is the number of minutes the drive was expected to take