What plus -9 equals -3

Which graph represents an even function?

Write 17/20 as a decimal and as a percent.

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.