The area of a square field is 4,900 square meters. How long is one side of the field?
O 70 meters
O 140 meters
O 560 meters
O 1225 meters

Simplify the expression 10/11(22z) + (a+5) -1

Which one ? is the answer and how to find this answer

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?