The running back for the bulldog's football team carried the ball 9 times for a total loss of 15 3/4 yards. find the average change in field position on each run

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Charlie tosses five coins.what is the probability that all five coins will land tails up.