Which of the following shows 3x + 15 + 6x – 7 + y in simplest terms? 9x + y + 8
26xy
18x + 8y
9x + 22 + y

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.

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.

How many 2/5s are in 1 and 1/2 plz someone me right now