In how many different ways may the 7 letters in the word minimum be arranged.

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.

Which letters from the table represent like terms? a and b b and c a and d b and d

What is negative 3/9 times negative 2/8 ?